{"id":7988,"date":"2026-08-03T10:00:00","date_gmt":"2026-08-03T02:00:00","guid":{"rendered":"https:\/\/maxtormetal.com\/?p=7988"},"modified":"2026-10-09T21:30:28","modified_gmt":"2026-10-09T13:30:28","slug":"reading-tool-steel-mtc-strip-blades-qa-checklist","status":"publish","type":"post","link":"https:\/\/maxtormetal.com\/vi\/reading-tool-steel-mtc-strip-blades-qa-checklist\/","title":{"rendered":"\u0110\u1ecdc ch\u1ee9ng ch\u1ec9 ki\u1ec3m \u0111\u1ecbnh (MTC) th\u00e9p c\u00f4ng c\u1ee5 cho dao c\u1eaft th\u00e9p d\u1ea3i: Checklist QA th\u1ef1c t\u1ebf v\u1ec1 th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc, \u0111\u1ed9 c\u1ee9ng v\u00e0 kh\u1ea3 n\u0103ng truy xu\u1ea5t ngu\u1ed3n g\u1ed1c"},"content":{"rendered":"<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/08\/image-1024x683.jpeg\" alt=\"\u0110\u1ecdc ch\u1ee9ng ch\u1ec9 ki\u1ec3m \u0111\u1ecbnh (MTC) th\u00e9p c\u00f4ng c\u1ee5 cho dao c\u1eaft th\u00e9p d\u1ea3i: Checklist QA th\u1ef1c t\u1ebf v\u1ec1 th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc, \u0111\u1ed9 c\u1ee9ng v\u00e0 kh\u1ea3 n\u0103ng truy xu\u1ea5t ngu\u1ed3n g\u1ed1c\" class=\"wp-image-7989\" srcset=\"https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/08\/image-1024x683.jpeg 1024w, https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/08\/image-300x200.jpeg 300w, https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/08\/image-768x512.jpeg 768w, https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/08\/image-18x12.jpeg 18w, https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/08\/image-600x400.jpeg 600w, https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/08\/image.jpeg 1536w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><p>C\u00e2u tr\u1ea3 l\u1eddi nhanh: \u0110\u1ec3 \u0111\u1ecdc MTC th\u00e9p c\u00f4ng c\u1ee5 cho dao c\u1eaft th\u00e9p d\u1ea3i, h\u00e3y b\u1eaft \u0111\u1ea7u t\u1eeb ph\u1ea7n ti\u00eau \u0111\u1ec1 \u2014 x\u00e1c minh lo\u1ea1i ch\u1ee9ng ch\u1ec9 EN 10204 3.1, th\u00f4ng tin nh\u00e0 cung c\u1ea5p, m\u00e1c th\u00e9p v\u00e0 s\u1ed1 m\u1ebb n\u1ea5u (heat number). Sau \u0111\u00f3, \u0111\u1ed1i chi\u1ebfu b\u1ea3ng th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc v\u1edbi \u0111\u01a1n \u0111\u1eb7t h\u00e0ng (PO)\/th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a b\u1ea1n (s\u1eed d\u1ee5ng ti\u00eau chu\u1ea9n ASTM A681 ho\u1eb7c ISO 4957 l\u00e0m tham chi\u1ebfu). X\u00e1c minh \u0111\u1ed9 \u0111\u1ed3ng \u0111\u1ec1u v\u1ec1 \u0111\u1ed9 c\u1ee9ng b\u1eb1ng bi\u1ec3u \u0111\u1ed3 \u0111o 9 \u0111i\u1ec3m (\u0111\u1ea7u\/gi\u1eefa\/cu\u1ed1i \u00d7 m\u00e9p\/t\u00e2m\/m\u00e9p theo ti\u00eau chu\u1ea9n ASTM E18) v\u00e0 b\u1ed5 sung ki\u1ec3m tra \u0111\u1ed9 tho\u00e1t c\u00e1c-bon (ASTM E1077) khi hi\u1ec7u su\u1ea5t c\u1ea1nh c\u1eaft l\u00e0 y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh. S\u1ed1 m\u1ebb n\u1ea5u ph\u1ea3i li\u00ean k\u1ebft ch\u1eb7t ch\u1ebd gi\u1eefa MTC, th\u1ebb cu\u1ed9n th\u00e9p (coil tag) v\u00e0 h\u1ed3 s\u01a1 l\u00f4 h\u00e0ng n\u1ed9i b\u1ed9 c\u1ee7a b\u1ea1n \u0111\u1ec3 t\u1ea1o th\u00e0nh m\u1ed9t chu\u1ed7i truy xu\u1ea5t ngu\u1ed3n g\u1ed1c ho\u00e0n ch\u1ec9nh.<\/p><p>In strip-blade manufacturing, a tool steel MTC is only useful if it helps you make a fast, defensible receiving decision\u2014and if you can still prove traceability after the coil has been slit, ground, and converted into internal lots. This practical checklist is prepared by the\u00a0Maxtor Metal QA &amp; Metallurgical Engineering Team, drawing on over 15 years of specialized experience in industrial blade manufacturing, custom steel selection, and strict quality control protocols when aligning paperwork, tagging, and verification between supplier and buyer.<\/p><ul><li><strong>M\u1ee5c \u0111\u00edch:<\/strong>&nbsp;enable fast, reliable acceptance decisions for strip blades<\/li>\n\n<li><strong>Ph\u1ea1m vi:<\/strong>&nbsp;EN 10204 3.1 focus (EN 10204 3.1 certificate), heat number, chemistry, hardness uniformity<\/li>\n\n<li><strong>Standards referenced:<\/strong>&nbsp;EN 10204, ASTM E18, ASTM E1077, ASTM A681\/ISO 4957<\/li>\n\n<li><strong>Why reading tool steel MTC matters to QA, uptime, and FPY<\/strong><\/li>\n\n<li><strong>How this checklist reduces retests, scrap, and downtime<\/strong><\/li><\/ul><blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p><strong>L\u01b0u \u00fd quan tr\u1ecdng<\/strong>: Treat the MTC as the\u00a0starting point\u00a0for acceptance: it anchors traceability and declared results, but your receiving checks decide whether the coil is safe to process.<\/p><\/blockquote><h2 class=\"wp-block-heading\" id=\"7bfd1b68-bc26-48d8-95d1-b575d87b5242\">Ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n v\u1ec1 ch\u1ee9ng ch\u1ec9 MTC<\/h2><h3 class=\"wp-block-heading\" id=\"c73758c4-185f-4c1e-8c84-3e518a6aa73d\">What an EN 10204 3.1 covers<\/h3><p>An EN 10204 Type 3.1 inspection certificate is the common \u201cmill test certificate \/ material test certificate\u201d format used in metals supply. In simple terms, it\u2019s the manufacturer\u2019s declaration that the delivered product complies with the order, and it includes test results tied to the test unit.<\/p><p>This is the EN 10204 3.1 certificate your traceability system ultimately points back to.<\/p><p>For the formal definitions and document types, refer to EN 10204:2004 directly\u2014available through official standards bodies such as&nbsp;<a href=\"https:\/\/knowledge.bsigroup.com\/products\/metallic-products-types-of-inspection-documents\" target=\"_blank\" rel=\"noreferrer noopener\"><em><strong>BSI (EN 10204:2004)<\/strong><\/em><\/a>&nbsp;or your regional standards authority. The standard defines all document types (2.1, 2.2, 3.1, 3.2) and the authorization requirements for each.<\/p><p>Checklist (3.1 basics):<\/p><ul><li>Certificate type is explicitly shown as&nbsp;<strong>EN 10204 3.1<\/strong>.<\/li>\n\n<li>It includes&nbsp;<strong>measured results<\/strong>&nbsp;(not just \u201cconforms\u201d).<\/li>\n\n<li>It is&nbsp;<strong>signed\/validated<\/strong>&nbsp;by the manufacturer\u2019s authorized inspection representative.<\/li><\/ul><h3 class=\"wp-block-heading\" id=\"cfcf5d9c-b79c-4757-a6ce-b5e7b628236e\">Heat number and traceability linkage<\/h3><p>For strip blades, the heat number is the shortest path to \u201cDo we know exactly what this coil is?\u201d It is the core of heat number traceability in coil-based supply. It should link:<\/p><ul><li>the MTC (declared chemistry + tests)<\/li>\n\n<li>the coil tag \/ packaging label<\/li>\n\n<li>your receiving record<\/li>\n\n<li>the internal lot numbers you create after slitting, leveling, or edge preparation<\/li><\/ul><p>Receiving checklist (traceability linkage):<\/p><ul><li>Heat number on MTC&nbsp;<strong>matches<\/strong>&nbsp;the heat\/heat-lot shown on the coil tag.<\/li>\n\n<li>Coil identifier (coil no., tag no., reel no.) is recorded on your receiving log.<\/li>\n\n<li>Your internal lot IDs&nbsp;<strong>inherit<\/strong>&nbsp;the heat number and keep it attached through WIP.<\/li><\/ul><h3 class=\"wp-block-heading\" id=\"0cd39982-e905-4699-b9e8-a52603478f23\">3.1 vs 3.2 vs 2.2<\/h3><p>Use this as a decision shortcut:<\/p><ul><li><strong>2.2<\/strong>: declaration of compliance based on non-specific inspection (good for low-risk use; limited for audits).<\/li>\n\n<li><strong>3.1<\/strong>: manufacturer-issued inspection certificate with test results (typical baseline for industrial tool steels).<\/li>\n\n<li><strong>3.2<\/strong>: inspection certificate with third-party or purchaser\u2019s representative involvement\/witnessing (use when the risk or contract demands it).<\/li><\/ul><h2 class=\"wp-block-heading\" id=\"99944525-5fb5-4db2-a50e-3444226a3eff\">\u091f\u0942\u0932 \u0938\u094d\u091f\u0940\u0932 MTC \u092a\u0930 \u0930\u0938\u093e\u092f\u0928 \u0935\u093f\u091c\u094d\u091e\u093e\u0928 \u0915\u094b \u0915\u0948\u0938\u0947 \u0938\u0924\u094d\u092f\u093e\u092a\u093f\u0924 \u0915\u0930\u0947\u0902 \u2014 \u0914\u0930 PMI \u0938\u0947 \u0906\u0917\u0947 \u0915\u092c \u091c\u093e\u0928\u093e \u0939\u0948<\/h2><div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"893\" src=\"https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/07\/coil-change.jpg\" alt=\"\u091f\u0942\u0932 \u0938\u094d\u091f\u0940\u0932 MTC \u092a\u0930 \u0930\u0938\u093e\u092f\u0928 \u0935\u093f\u091c\u094d\u091e\u093e\u0928 \u0915\u094b \u0915\u0948\u0938\u0947 \u0938\u0924\u094d\u092f\u093e\u092a\u093f\u0924 \u0915\u0930\u0947\u0902 \u2014 \u0914\u0930 PMI \u0938\u0947 \u0906\u0917\u0947 \u0915\u092c \u091c\u093e\u0928\u093e \u0939\u0948\" class=\"wp-image-7926\" style=\"width:572px;height:auto\" srcset=\"https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/07\/coil-change.jpg 1000w, https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/07\/coil-change-300x268.jpg 300w, https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/07\/coil-change-768x686.jpg 768w, https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/07\/coil-change-13x12.jpg 13w, https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/07\/coil-change-600x536.jpg 600w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/figure><\/div><h3 class=\"wp-block-heading\" id=\"6c955d66-bc0e-4188-b41f-7ff80729ff90\">D2\/M2\/O1 acceptance bands<\/h3><p>A tool steel MTC is not \u201cgood\u201d because it lists numbers\u2014it\u2019s good because the numbers match what you ordered.<\/p><p>Practical acceptance rule:<\/p><ul><li>Your acceptance bands should come from&nbsp;<strong>your PO\/spec callout<\/strong>, typically referencing a tool-steel material standard such as&nbsp;<a href=\"https:\/\/store.astm.org\/standards\/a681\" target=\"_blank\" rel=\"noreferrer noopener\"><em><strong>Ti\u00eau chu\u1ea9n ASTMA681<\/strong><\/em><\/a>&nbsp;ho\u1eb7c&nbsp;<a href=\"https:\/\/www.iso.org\/standard\/70646.html\" target=\"_blank\" rel=\"noreferrer noopener\"><em><strong>ISO 4957:2018<\/strong><\/em><\/a>.<\/li><\/ul><figure class=\"wp-block-table\"><table><tbody><tr><th>C\u1ea5p<\/th><th>Carbon (C)<\/th><th>Crom (Cr)<\/th><th>Vanadi (V)<\/th><th>Molybdan (Mo)<\/th><th>Vonfram (W)<\/th><\/tr><tr><td><strong>D2 (1.2379)<\/strong><\/td><td>1.40 \u2013 1.60%<\/td><td>11.00 \u2013 13.00%<\/td><td>0.70 \u2013 1.10%<\/td><td>0.70 \u2013 1.20%<\/td><td>\u2014<\/td><\/tr><tr><td><strong>M2 (1.3343)<\/strong><\/td><td>0.78 \u2013 1.05%<\/td><td>3.75 \u2013 4.50%<\/td><td>1.75 \u2013 2.20%<\/td><td>4.50 \u2013 5.50%<\/td><td>5.50 \u2013 6.75%<\/td><\/tr><tr><td><strong>O1 (1.2510)<\/strong><\/td><td>0.85 \u2013 1.00%<\/td><td>0.40 \u2013 0.60%<\/td><td>0.05 \u2013 0.30%<\/td><td>\u2014<\/td><td>40 \u2013 0.60% (t\u00f9y ch\u1ecdn)<\/td><\/tr><\/tbody><\/table><\/figure><p><em>Ngu\u1ed3n tham kh\u1ea3o: Gi\u1edbi h\u1ea1n th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc ti\u00eau chu\u1ea9n ASTM A681 \/ ISO 4957.<\/em><\/p><p>Danh s\u00e1ch ki\u1ec3m tra (nghi\u1ec7m thu th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc):<\/p><ul><li>M\u00e1c th\u00e9p \u0111\u01b0\u1ee3c ghi r\u00f5 r\u00e0ng (v\u00ed d\u1ee5:,&nbsp;<strong>D2<\/strong>,&nbsp;<strong>M2<\/strong>,&nbsp;<strong>O1<\/strong>) v\u00e0 kh\u1edbp v\u1edbi PO.<\/li>\n\n<li>B\u1ea3ng th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc bao g\u1ed3m c\u00e1c nguy\u00ean t\u1ed1 h\u1ee3p kim quan tr\u1ecdng c\u1ee7a m\u00e1c th\u00e9p \u0111\u00f3.<\/li>\n\n<li>S\u1ed1 m\u1ebb luy\u1ec7n (heat number) tr\u00ean b\u00e1o c\u00e1o th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc kh\u1edbp v\u1edbi s\u1ed1 m\u1ebb luy\u1ec7n tr\u00ean ph\u1ea7n \u0111\u1ea7u ch\u1ee9ng ch\u1ec9.<\/li><\/ul><p>\u0110\u1ec3 bi\u1ebft khung chi ti\u1ebft v\u1ec1 c\u00e1ch x\u00e1c th\u1ef1c m\u00e1c v\u1eadt li\u1ec7u \u2014 bao g\u1ed3m h\u1ed3 s\u01a1 l\u00f4 x\u1eed l\u00fd nhi\u1ec7t v\u00e0 x\u00e1c minh l\u01b0\u1ee3ng austenit d\u01b0 b\u1eb1ng XRD \u2014 \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh cho th\u00e9p b\u0103ng l\u00e0m l\u01b0\u1ee1i dao \u1edf giai \u0111o\u1ea1n \u0111\u1ea7u v\u00e0o, h\u00e3y xem<a href=\"https:\/\/maxtormetal.com\/vi\/urschel-dicer-replacement-blades-440c-hrc-56-58-qa\/\" target=\"_blank\" rel=\"noreferrer noopener\">&nbsp;<strong><em>Validating 440C Dicer Replacement Blades at HRC 56\u201358<\/em><\/strong><\/a>.<\/p><blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p><strong>M\u1eb9o chuy\u00ean nghi\u1ec7p<\/strong>: \u0110\u1ed1i v\u1edbi c\u00e1c cu\u1ed9n th\u00e9p \u0111\u1ea7u v\u00e0o d\u00f9ng cho l\u01b0\u1ee1i dao d\u1ea1ng b\u0103ng, h\u00e3y thi\u1ebft l\u1eadp quy t\u1eafc \u201cd\u1eebng d\u00e2y chuy\u1ec1n\u201d khi c\u00f3 s\u1ef1 m\u01a1 h\u1ed3 v\u1ec1 m\u00e1c th\u00e9p (v\u00ed d\u1ee5: c\u00e1c m\u00e1c t\u01b0\u01a1ng \u0111\u01b0\u01a1ng kh\u00f4ng r\u00f5 r\u00e0ng ho\u1eb7c thi\u1ebfu k\u00fd hi\u1ec7u m\u00e1c th\u00e9p). Vi\u1ec7c n\u00e0y h\u1ea7u nh\u01b0 lu\u00f4n ti\u1ebft ki\u1ec7m chi ph\u00ed h\u01a1n so v\u1edbi vi\u1ec7c x\u1eed l\u00fd s\u1ef1 sai l\u1ec7ch v\u1ec1 hi\u1ec7u su\u1ea5t sau n\u00e0y.<\/p><\/blockquote><h3 class=\"wp-block-heading\" id=\"c509d33a-0f97-467c-b6d3-00f49711bd20\">PMI so v\u1edbi spark-OES\/ICP-OES<\/h3><p>Ki\u1ec3m tra nh\u1eadn d\u1ea1ng v\u1eadt li\u1ec7u (PMI) th\u01b0\u1eddng \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t gi\u1ea3i ph\u00e1p v\u1ea1n n\u0103ng. Th\u1ef1c t\u1ebf kh\u00f4ng ph\u1ea3i v\u1eady.<\/p><ul><li>PMI\/XRF c\u00f3 th\u1ebf m\u1ea1nh trong vi\u1ec7c x\u00e1c nh\u1eadn&nbsp;<strong>nh\u00f3m h\u1ee3p kim<\/strong>&nbsp;v\u00e0 nhi\u1ec1u nguy\u00ean t\u1ed1 kh\u00e1c, nh\u01b0ng l\u1ea1i b\u1ecb h\u1ea1n ch\u1ebf \u0111\u1ed1i v\u1edbi&nbsp;<strong>cacbon<\/strong>.<\/li>\n\n<li>Ph\u01b0\u01a1ng ph\u00e1p Spark-OES v\u00e0 ICP-OES th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi b\u1ea1n c\u1ea7n&nbsp;<strong>ph\u00e2n t\u00edch th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc \u0111\u1ea7y \u0111\u1ee7 h\u01a1n<\/strong>, bao g\u1ed3m c\u1ea3 c\u00e1c quy\u1ebft \u0111\u1ecbnh nghi\u1ec7m thu quan tr\u1ecdng li\u00ean quan \u0111\u1ebfn h\u00e0m l\u01b0\u1ee3ng carbon.<\/li><\/ul><div class=\"wp-block-image\"><figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"1536\" height=\"1024\" src=\"https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/08\/image-1.jpeg\" alt=\"Infographic comparing PMI\/XRF vs spark-OES vs ICP-OES for tool steel acceptance\" class=\"wp-image-7990\" srcset=\"https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/08\/image-1.jpeg 1536w, https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/08\/image-1-300x200.jpeg 300w, https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/08\/image-1-1024x683.jpeg 1024w, https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/08\/image-1-768x512.jpeg 768w, https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/08\/image-1-18x12.jpeg 18w, https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/08\/image-1-600x400.jpeg 600w\" sizes=\"(max-width: 1536px) 100vw, 1536px\" \/><\/figure><\/div><p>Danh s\u00e1ch ki\u1ec3m tra (s\u1eed d\u1ee5ng \u0111\u00fang ph\u01b0\u01a1ng ph\u00e1p):<\/p><ul><li>S\u1eed d\u1ee5ng PMI\/XRF \u0111\u1ec3 s\u00e0ng l\u1ecdc: \u201c\u0110\u00e2y c\u00f3 \u0111\u00fang l\u00e0 nh\u00f3m h\u1ee3p kim c\u1ea7n t\u00ecm v\u1ec1 m\u1eb7t t\u1ed5ng th\u1ec3 kh\u00f4ng?\u201d<\/li>\n\n<li>S\u1eed d\u1ee5ng spark-OES ho\u1eb7c ICP-OES khi vi\u1ec7c nghi\u1ec7m thu ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c k\u1ebft qu\u1ea3 nh\u1ea1y c\u1ea3m v\u1edbi carbon (kh\u1ea3 n\u0103ng \u0111\u00e1p \u1ee9ng \u0111\u1ed9 c\u1ee9ng, h\u00e0nh vi c\u1ee7a m\u1ea1ng l\u01b0\u1edbi carbide), ho\u1eb7c khi h\u1ee3p \u0111\u1ed3ng y\u00eau c\u1ea7u x\u00e1c nh\u1eadn t\u1eeb ph\u00f2ng th\u00ed nghi\u1ec7m.<\/li>\n\n<li>Ghi l\u1ea1i ph\u01b0\u01a1ng ph\u00e1p v\u00e0 m\u00e3 \u0111\u1ecbnh danh thi\u1ebft b\u1ecb (instrument ID) v\u00e0o bi\u00ean b\u1ea3n nh\u1eadn h\u00e0ng \u0111\u1ec3 k\u1ebft qu\u1ea3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ki\u1ec3m to\u00e1n.<\/li><\/ul><h3 class=\"wp-block-heading\" id=\"7f5adb84-541f-4210-a602-2dab9e337d42\">Gi\u1ea3i quy\u1ebft c\u00e1c sai l\u1ec7ch so v\u1edbi PO\/th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt<\/h3><p>Khi k\u1ebft qu\u1ea3 ph\u00e2n t\u00edch h\u00f3a h\u1ecdc c\u00f3 s\u1ef1 m\u00e2u thu\u1eabn (gi\u1eefa MTC, k\u1ebft qu\u1ea3 ki\u1ec3m tra c\u1ee7a b\u1ea1n v\u00e0 k\u1ebft qu\u1ea3 ki\u1ec3m tra l\u1ea1i c\u1ee7a nh\u00e0 cung c\u1ea5p), c\u00e1ch nhanh nh\u1ea5t \u0111\u1ec3 tr\u00e1nh th\u1eddi gian d\u1eebng m\u00e1y l\u00e0 tu\u00e2n theo quy tr\u00ecnh b\u00e1o c\u00e1o leo thang b\u1eb1ng v\u0103n b\u1ea3n.<\/p><p>Danh s\u00e1ch ki\u1ec3m tra gi\u1ea3i quy\u1ebft sai l\u1ec7ch:<\/p><ol><li><strong>C\u1ed1 \u0111\u1ecbnh th\u00f4ng tin nh\u1eadn d\u1ea1ng<\/strong>: x\u00e1c nh\u1eadn s\u1ed1 m\u1ebb luy\u1ec7n (heat number) + th\u1ebb cu\u1ed9n (coil tag) + v\u1ecb tr\u00ed l\u1ea5y m\u1eabu (\u0111\u1ea7u\/gi\u1eefa\/cu\u1ed1i).<\/li>\n\n<li><strong>X\u00e1c nh\u1eadn t\u00e0i li\u1ec7u tham chi\u1ebfu<\/strong>: ki\u1ec3m tra phi\u00ean b\u1ea3n PO\/th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u00e0 x\u00e1c \u0111\u1ecbnh ti\u00eau chu\u1ea9n \u00e1p d\u1ee5ng (v\u00ed d\u1ee5: ASTM A681 \/ ISO 4957).<\/li>\n\n<li><strong>X\u00e1c nh\u1eadn ph\u01b0\u01a1ng ph\u00e1p<\/strong>: PMI so v\u1edbi OES so v\u1edbi ICP-OES; l\u01b0u \u00fd gi\u1edbi h\u1ea1n ph\u00e1t hi\u1ec7n v\u00e0 li\u1ec7u carbon c\u00f3 th\u1ef1c s\u1ef1 \u0111\u01b0\u1ee3c \u0111o hay kh\u00f4ng.<\/li>\n\n<li><strong>L\u1ea5y m\u1eabu l\u1ea1i m\u1ed9t c\u00e1ch c\u00f3 ch\u1ee7 \u0111\u00edch<\/strong>: l\u1ea5y m\u1eabu th\u1ee9 hai t\u1eeb m\u1ed9t v\u1ecb tr\u00ed kh\u00e1c v\u00e0 ghi l\u1ea1i chu\u1ed7i gi\u00e1m s\u00e1t (chain-of-custody).<\/li>\n\n<li><strong>Quy\u1ebft \u0111\u1ecbnh h\u00e0nh \u0111\u1ed9ng<\/strong>: ch\u1ea5p nh\u1eadn, t\u1ea1m gi\u1eef \u0111\u1ec3 x\u1eed l\u00fd, h\u1ea1 c\u1ea5p s\u1eed d\u1ee5ng ho\u1eb7c t\u1eeb ch\u1ed1i \u2014 d\u1ef1a tr\u00ean th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt \u00e1p d\u1ee5ng v\u00e0 m\u1ee9c \u0111\u1ed9 r\u1ee7i ro.<\/li><\/ol><h2 class=\"wp-block-heading\" id=\"88a20c1c-c718-4267-9ddd-d32d32fbbc9c\">T\u1ea1i sao \u0111\u1ed9 \u0111\u1ed3ng \u0111\u1ec1u v\u1ec1 \u0111\u1ed9 c\u1ee9ng l\u1ea1i quan tr\u1ecdng h\u01a1n gi\u00e1 tr\u1ecb trung b\u00ecnh \u2014 v\u00e0 c\u00e1ch l\u1eadp bi\u1ec3u \u0111\u1ed3 \u0111\u1ed9 c\u1ee9ng tr\u00ean th\u00e9p d\u1ea3i<\/h2><div class=\"wp-block-image\"><figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"1536\" height=\"1024\" src=\"https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/08\/image-2.jpeg\" alt=\"Hardness mapping diagram for strip showing edge\u2013center\u2013edge and head\/mid\/tail test points\" class=\"wp-image-7991\" srcset=\"https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/08\/image-2.jpeg 1536w, https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/08\/image-2-300x200.jpeg 300w, https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/08\/image-2-1024x683.jpeg 1024w, https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/08\/image-2-768x512.jpeg 768w, https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/08\/image-2-18x12.jpeg 18w, https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/08\/image-2-600x400.jpeg 600w\" sizes=\"(max-width: 1536px) 100vw, 1536px\" \/><\/figure><\/div><p>\u0110\u1ed1i v\u1edbi th\u1eed nghi\u1ec7m Rockwell, h\u00e3y d\u1eabn chi\u1ebfu ph\u01b0\u01a1ng ph\u00e1p ch\u00ednh th\u1ee9c:&nbsp;<a href=\"https:\/\/store.astm.org\/e0018-22.html\" target=\"_blank\" rel=\"noreferrer noopener\"><em><strong>Ph\u01b0\u01a1ng ph\u00e1p th\u1eed \u0111\u1ed9 c\u1ee9ng Rockwell ASTM E18<\/strong><\/em><\/a>. \u0110\u1ec3 bi\u1ebft th\u00eam b\u1ed1i c\u1ea3nh th\u1ef1c t\u1ebf v\u1ec1 l\u00fd do t\u1ea1i sao \u0111\u1ed9 d\u00e0y\/b\u1ec7 \u0111\u1ee1 l\u1ea1i quan tr\u1ecdng, h\u01b0\u1edbng d\u1eabn c\u1ee7a NIST l\u00e0 m\u1ed9t t\u00e0i li\u1ec7u tham kh\u1ea3o h\u1eefu \u00edch:&nbsp;<a href=\"https:\/\/www.metallurgy.nist.gov\/reports\/recommendedpractice\/SP960_5.pdf\" target=\"_blank\" rel=\"noreferrer noopener\"><em><strong>Th\u1ef1c h\u00e0nh khuy\u1ebfn ngh\u1ecb v\u1ec1 \u0111\u1ed9 c\u1ee9ng Rockwell c\u1ee7a NIST<\/strong><\/em><\/a>.<\/p><h3 class=\"wp-block-heading\" id=\"c21acb2a-cecf-4ba1-a293-3673cad1137d\">Tr\u1ea1ng th\u00e1i cung c\u1ea5p: \u1ee6 m\u1ec1m so v\u1edbi T\u00f4i c\u1ee9ng tr\u01b0\u1edbc<\/h3><p>Tr\u01b0\u1edbc khi \u0111\u00e1nh gi\u00e1 c\u00e1c gi\u00e1 tr\u1ecb \u0111\u1ed9 c\u1ee9ng, h\u00e3y l\u00e0m r\u00f5 tr\u1ea1ng th\u00e1i giao h\u00e0ng tr\u00ean PO\/MTC:<\/p><ul><li><strong>Th\u00e9p b\u0103ng \u1ee7 m\u1ec1m (M\u1ec1m)<\/strong>: \u0110\u01b0\u1ee3c giao \u1edf tr\u1ea1ng th\u00e1i \u1ee7 c\u1ea7u h\u00f3a \u0111\u1ec3 ph\u1ee5c v\u1ee5 cho qu\u00e1 tr\u00ecnh t\u1ea1o h\u00ecnh m\u1ea1nh, x\u1ebb b\u0103ng ho\u1eb7c d\u1eadp l\u1ed7 tr\u01b0\u1edbc khi x\u1eed l\u00fd nhi\u1ec7t cu\u1ed1i c\u00f9ng.<\/li>\n\n<li><strong>Th\u00e9p b\u0103ng t\u00f4i c\u1ee9ng tr\u01b0\u1edbc \/ T\u00f4i &amp; Ram<\/strong>: \u0110\u01b0\u1ee3c giao \u1edf \u0111\u1ed9 c\u1ee9ng l\u00e0m vi\u1ec7c \u0111\u1ec3 m\u00e0i tr\u1ef1c ti\u1ebfp, t\u1ea1o c\u1ea1nh ho\u1eb7c x\u1ebb b\u0103ng nh\u1eb9 m\u00e0 kh\u00f4ng c\u1ea7n tr\u1ea3i qua qu\u00e1 tr\u00ecnh t\u00f4i ho\u00e0n to\u00e0n sau \u0111\u00f3.<\/li><\/ul><figure class=\"wp-block-table\"><table><tbody><tr><th>C\u1ea5p<\/th><th>Tr\u1ea1ng th\u00e1i \u1ee7 m\u1ec1m (\u0110\u1ed9 c\u1ee9ng t\u1ed1i \u0111a)<\/th><th>Tr\u1ea1ng th\u00e1i t\u00f4i tr\u01b0\u1edbc \/ X\u1eed l\u00fd nhi\u1ec7t (Ph\u1ea1m vi l\u00e0m vi\u1ec7c)<\/th><\/tr><tr><td><strong>D2<\/strong><\/td><td>T\u1ed1i \u0111a 255 HBW (~25 HRC)<\/td><td>58 \u2013 62 HRC<\/td><\/tr><tr><td><strong>M2<\/strong><\/td><td>T\u1ed1i \u0111a 269 HBW (~27 HRC)<\/td><td>60 \u2013 65 HRC<\/td><\/tr><tr><td><strong>O1<\/strong><\/td><td>T\u1ed1i \u0111a 229 HBW (~20 HRC)<\/td><td>56 \u2013 62 HRC<\/td><\/tr><\/tbody><\/table><\/figure><p>Nh\u1ea7m l\u1eabn v\u1ec1 \u0111i\u1ec1u ki\u1ec7n giao h\u00e0ng l\u00e0 nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn d\u1eabn \u0111\u1ebfn vi\u1ec7c lo\u1ea1i b\u1ecf sai ho\u1eb7c nghi\u1ec7m thu sai \u2014 lu\u00f4n ki\u1ec3m tra ph\u1ea7n ti\u00eau \u0111\u1ec1 c\u1ee7a MTC \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh tr\u1ea1ng th\u00e1i v\u1eadt li\u1ec7u tr\u01b0\u1edbc khi \u00e1p d\u1ee5ng b\u1ea5t k\u1ef3 gi\u1edbi h\u1ea1n ch\u1ea5p nh\u1eadn \u0111\u1ed9 c\u1ee9ng n\u00e0o.<\/p><h3 class=\"wp-block-heading\" id=\"8ebd144f-16c9-4a5e-b808-c834246c3d19\">S\u01a1 \u0111\u1ed3 l\u1ea5y m\u1eabu th\u00e9p d\u1ea3i: m\u00e9p\u2013gi\u1eefa\u2013m\u00e9p; \u0111\u1ea7u\/gi\u1eefa\/cu\u1ed1i<\/h3><p>\u0110\u1ed9 ph\u00e2n t\u00e1n \u0111\u1ed9 c\u1ee9ng \u1edf th\u00e9p d\u1ea3i th\u01b0\u1eddng \u1ea9n gi\u1ea5u theo hai h\u01b0\u1edbng:<\/p><ul><li><strong>Theo chi\u1ec1u r\u1ed9ng<\/strong>&nbsp;(ch\u00eanh l\u1ec7ch t\u1eeb m\u00e9p n\u00e0y sang m\u00e9p kia do gia c\u00f4ng, tho\u00e1t cacbon ho\u1eb7c n\u1eafn ph\u1eb3ng)<\/li>\n\n<li><strong>Theo chi\u1ec1u d\u00e0i<\/strong>&nbsp;(ch\u00eanh l\u1ec7ch \u0111\u1ea7u\/gi\u1eefa\/cu\u1ed1i do bi\u1ebfn \u0111\u1ed9ng x\u1eed l\u00fd nhi\u1ec7t ho\u1eb7c hi\u1ec7u \u1ee9ng \u0111\u1ea7u cu\u1ed9n)<\/li><\/ul><p>Danh s\u00e1ch ki\u1ec3m tra (s\u01a1 \u0111\u1ed3 t\u1ed1i thi\u1ec3u v\u1eabn ph\u00e1t hi\u1ec7n \u0111\u01b0\u1ee3c s\u1ef1 c\u1ed1):<\/p><ul><li>L\u1ea5y m\u1eabu t\u1ea1i&nbsp;<strong>\u0111\u1ea7u \/ gi\u1eefa \/ cu\u1ed1i<\/strong>.<\/li>\n\n<li>T\u1ea1i m\u1ed7i v\u1ecb tr\u00ed chi\u1ec1u d\u00e0i, \u0111o ki\u1ec3m&nbsp;<strong>m\u00e9p \/ gi\u1eefa \/ m\u00e9p<\/strong>.<\/li>\n\n<li>Ghi l\u1ea1i ID v\u1ecb tr\u00ed \u0111\u1ec3 c\u00e1c khi\u1ebfu n\u1ea1i trong t\u01b0\u01a1ng lai c\u00f3 th\u1ec3 truy xu\u1ea5t ngu\u1ed3n g\u1ed1c v\u1ec1 \u0111\u00fang v\u00f9ng.<\/li><\/ul><h3 class=\"wp-block-heading\" id=\"5941a4a9-4a27-4bad-b290-37e8e8401d95\">T\u00ednh h\u1ee3p l\u1ec7 c\u1ee7a thi\u1ebft l\u1eadp: \u0111\u1ed9 d\u00e0y, kho\u1ea3ng c\u00e1ch, \u0111i\u1ec3m \u0111\u1ee1<\/h3><p>Gi\u00e1 tr\u1ecb \u0111\u1ed9 c\u1ee9ng ch\u1ec9 c\u00f3 gi\u00e1 tr\u1ecb s\u1eed d\u1ee5ng khi thi\u1ebft l\u1eadp th\u1eed nghi\u1ec7m ph\u00f9 h\u1ee3p v\u1edbi h\u00ecnh h\u1ecdc c\u1ee7a d\u1ea3i th\u00e9p.<\/p><p>Danh s\u00e1ch ki\u1ec3m tra thi\u1ebft l\u1eadp:<\/p><ul><li>X\u00e1c nh\u1eadn b\u1ea1n \u0111ang s\u1eed d\u1ee5ng thang \u0111o Rockwell ph\u00f9 h\u1ee3p v\u1edbi \u0111\u1ed9 d\u00e0y c\u1ee7a d\u1ea3i th\u00e9p.<\/li>\n\n<li>\u0110\u1ea3m b\u1ea3o m\u1eabu th\u1eed&nbsp;<strong>ph\u1eb3ng v\u00e0 \u0111\u01b0\u1ee3c \u0111\u1ee1 ch\u1eafc ch\u1eafn<\/strong>&nbsp;tr\u00ean \u0111e th\u1eed ph\u00f9 h\u1ee3p; tr\u00e1nh b\u1ecb b\u1eadp b\u1ed3ng.<\/li>\n\n<li>Gi\u1eef kho\u1ea3ng c\u00e1ch c\u00e1c v\u1ebft l\u00f5m \u0111\u1ee7 xa m\u00e9p v\u00e0 xa nhau \u0111\u1ec3 tr\u00e1nh \u1ea3nh h\u01b0\u1edfng l\u1eabn nhau.<\/li>\n\n<li>N\u1ebfu d\u1ea3i th\u00e9p m\u1ecfng, \u0111\u1eebng \u201cgi\u1ea3i quy\u1ebft\u201d b\u1eb1ng c\u00e1ch x\u1ebfp ch\u1ed3ng c\u00e1c l\u1edbp\u2014h\u00e3y ki\u1ec3m so\u00e1t ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m.<\/li><\/ul><h3 class=\"wp-block-heading\" id=\"8f83031e-2f4a-421a-9547-918d5adfa22d\">Ph\u00e2n t\u00edch \u0111\u1ed9 ph\u00e2n t\u00e1n v\u00e0 h\u00e0nh \u0111\u1ed9ng x\u1eed l\u00fd<\/h3><p>\u0110\u1eebng ch\u1ec9 nh\u00ecn v\u00e0o gi\u00e1 tr\u1ecb trung b\u00ecnh. H\u00e3y xem x\u00e9t \u0111\u1ed9 ph\u00e2n t\u00e1n.<\/p><p>Danh s\u00e1ch ki\u1ec3m tra ph\u00e2n t\u00edch:<\/p><ul><li>N\u1ebfu \u0111\u1ea7u\/gi\u1eefa\/cu\u1ed1i c\u00f9ng thay \u0111\u1ed5i, nghi ng\u1edd&nbsp;<strong>x\u1eed l\u00fd nhi\u1ec7t theo m\u1ebb<\/strong>&nbsp;ho\u1eb7c&nbsp;<strong>s\u1ef1 l\u1ec7ch c\u1eeda s\u1ed5 quy tr\u00ecnh<\/strong>.<\/li>\n\n<li>N\u1ebfu c\u00e1c m\u00e9p li\u00ean t\u1ee5c c\u00f3 \u0111\u1ed9 c\u1ee9ng th\u1ea5p h\u01a1n ph\u1ea7n gi\u1eefa, nghi ng\u1edd&nbsp;<strong>hi\u1ec7n t\u01b0\u1ee3ng tho\u00e1t cacbon<\/strong>&nbsp;ho\u1eb7c \u1ea3nh h\u01b0\u1edfng t\u1eeb qu\u00e1 tr\u00ecnh x\u1eed l\u00fd m\u00e9p.<\/li>\n\n<li>N\u1ebfu m\u1ed9t v\u00f9ng kh\u00f4ng \u0111\u1ea1t, h\u00e3y c\u00e1ch ly v\u00f9ng \u0111\u00f3 trong quy tr\u00ecnh WIP (kh\u00f4ng tr\u1ed9n l\u1eabn c\u00e1c l\u00f4).<\/li><\/ul><p>Danh s\u00e1ch ki\u1ec3m tra h\u00e0nh \u0111\u1ed9ng:<\/p><ul><li><strong>Nghi\u1ec7m thu<\/strong>: \u0111\u1ed9 c\u1ee9ng \u0111\u1ea1t m\u1ee5c ti\u00eau PO v\u00e0 \u0111\u1ed9 ph\u00e2n t\u00e1n n\u1eb1m trong gi\u1edbi h\u1ea1n ki\u1ec3m so\u00e1t n\u1ed9i b\u1ed9 c\u1ee7a b\u1ea1n.<\/li>\n\n<li><strong>T\u1ea1m gi\u1eef \/ th\u1eed nghi\u1ec7m l\u1ea1i<\/strong>: \u0111\u1ed9 c\u1ee9ng \u1edf m\u1ee9c ranh gi\u1edbi ho\u1eb7c \u0111\u1ed9 ph\u00e2n t\u00e1n cho th\u1ea5y c\u00f3 s\u1ef1 c\u1ed1 c\u1ee5c b\u1ed9.<\/li>\n\n<li><strong>Lo\u1ea1i b\u1ecf \/ x\u1eed l\u00fd<\/strong>: \u0111\u1ed9 c\u1ee9ng ngo\u00e0i ti\u00eau chu\u1ea9n, ho\u1eb7c \u0111\u1ed9 ph\u00e2n t\u00e1n cho th\u1ea5y t\u00ednh kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t s\u1ebd g\u00e2y t\u1ed5n th\u1ea5t FPY.<\/li><\/ul><h2 class=\"wp-block-heading\" id=\"bc36a373-97ee-43a4-bb09-12e4636030e6\">Hi\u1ec7n t\u01b0\u1ee3ng tho\u00e1t c\u00e1c-bon (Decarburization) v\u00e0 \u0111\u1ed9 \u0111\u1ed3ng \u0111\u1ec1u<\/h2><div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"900\" src=\"https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/05\/Blade-Strip-Steel-7.11.jpg\" alt=\"Hi\u1ec7n t\u01b0\u1ee3ng tho\u00e1t c\u00e1c-bon (Decarburization) v\u00e0 \u0111\u1ed9 \u0111\u1ed3ng \u0111\u1ec1u\" class=\"wp-image-7635\" style=\"width:618px;height:auto\" srcset=\"https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/05\/Blade-Strip-Steel-7.11.jpg 900w, https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/05\/Blade-Strip-Steel-7.11-300x300.jpg 300w, https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/05\/Blade-Strip-Steel-7.11-150x150.jpg 150w, https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/05\/Blade-Strip-Steel-7.11-768x768.jpg 768w, https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/05\/Blade-Strip-Steel-7.11-12x12.jpg 12w, https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/05\/Blade-Strip-Steel-7.11-600x600.jpg 600w, https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/05\/Blade-Strip-Steel-7.11-100x100.jpg 100w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><\/figure><\/div><h3 class=\"wp-block-heading\" id=\"dd2012cb-baba-4b36-87c2-dbf22b0c200b\">Ph\u00e1t hi\u1ec7n v\u00e0 \u0111o l\u01b0\u1eddng theo ASTM E1077<\/h3><p>N\u1ebfu m\u00e9p d\u1ea3i th\u00e9p b\u1ecb m\u1ec1m, d\u1ec5 s\u1ee9t m\u1ebb s\u1edbm ho\u1eb7c kh\u00f4ng gi\u1eef \u0111\u01b0\u1ee3c l\u01b0\u1ee1i m\u00e0i \u1ed5n \u0111\u1ecbnh, hi\u1ec7n t\u01b0\u1ee3ng tho\u00e1t cacbon l\u00e0 nguy\u00ean nh\u00e2n nghi ng\u1edd h\u00e0ng \u0111\u1ea7u\u2014\u0111\u1eb7c bi\u1ec7t l\u00e0 \u1edf c\u00e1c ph\u1ea7n m\u1ecfng n\u01a1i v\u00f9ng b\u1ec1 m\u1eb7t chi\u1ebfm t\u1ef7 l\u1ec7 l\u1edbn trong m\u1eb7t c\u1eaft ngang.<\/p><p>Ph\u01b0\u01a1ng ph\u00e1p c\u1ee7a ASTM \u0111\u1ec3 \u01b0\u1edbc t\u00ednh \u0111\u1ed9 s\u00e2u tho\u00e1t cacbon l\u00e0&nbsp;<a href=\"https:\/\/store.astm.org\/e1077-14r21.html\" target=\"_blank\" rel=\"noreferrer noopener\"><em><strong>ASTM E1077 \u2014 Standard Test Methods for Estimating the Depth of Decarburization of Steel Specimens<\/strong><\/em><\/a>.<\/p><p>Danh s\u00e1ch ki\u1ec3m tra (nh\u1eefng g\u00ec c\u1ea7n y\u00eau c\u1ea7u\/b\u00e1o c\u00e1o):<\/p><ul><li>Sample location and orientation (edge vs center; head\/mid\/tail if relevant).<\/li>\n\n<li>Whether results are reported as&nbsp;<strong>total<\/strong>&nbsp;V\u00e0&nbsp;<strong>partial<\/strong>&nbsp;decarburization depth.<\/li>\n\n<li>Metallography prep and etching method (so results are comparable across labs).<\/li><\/ul><h3 class=\"wp-block-heading\" id=\"8bc226ee-9803-4375-a090-9dcc3546a376\">Impact on hardness and mitigation<\/h3><p>Decarb turns into performance scatter because it shifts the hardness profile near the working surface.<\/p><p>Impact checklist:<\/p><ul><li>Softer surface zone \u2192 faster wear, unstable edge, unpredictable grinding response.<\/li>\n\n<li>Edge zone affected \u2192 failures show up as chipping or rapid dulling even when \u201cbulk hardness\u201d looks OK.<\/li><\/ul><p>Mitigation checklist:<\/p><ul><li>Set decarb limits on the PO when the application is edge-sensitive.<\/li>\n\n<li>Control incoming verification for high-risk lots (new supplier, process change, unusual thickness).<\/li>\n\n<li>After secondary processing (slitting, grinding, heat treatment), re-verify hardness and surface condition before releasing to production.<\/li><\/ul><h2 class=\"wp-block-heading\" id=\"b7b2d05c-67a9-458c-a76e-5ea032ffa90f\">Quy tr\u00ecnh thao t\u00e1c chu\u1ea9n (SOP) v\u1ec1 t\u00e0i li\u1ec7u v\u00e0 truy xu\u1ea5t ngu\u1ed3n g\u1ed1c<\/h2><h3 class=\"wp-block-heading\" id=\"ae5bbdfb-920e-4aef-96a6-7348473b85d5\">Link MTC, coil tags, internal lots<\/h3><p>A practical SOP connects physical identity to records so you can pass audits and also troubleshoot downtime quickly.<\/p><p>Checklist (minimum traceability chain):<\/p><ul><li>Archive the MTC PDF with a filename that includes&nbsp;<strong>supplier + grade + heat number<\/strong>.<\/li>\n\n<li>Photograph or scan the coil tag on receipt.<\/li>\n\n<li>Assign internal lot numbers that preserve the heat number association.<\/li><\/ul><p><strong>Ghi ch\u00fa k\u1ef9 thu\u1eadt:<\/strong>&nbsp;If your traceability SOP needs to align with coil supply format specifications \u2014 including reel dimensions, lot splitting conventions, and documentation requirements \u2014 see Maxtor Metal&#8217;s reference page on&nbsp;<a href=\"https:\/\/maxtormetal.com\/vi\/san-pham\/industrial-blade-strip-steel-beveled-reels\/\" target=\"_blank\" rel=\"noreferrer noopener\"><em><strong>th\u00e9p b\u0103ng l\u00e0m l\u01b0\u1ee1i dao c\u00f4ng nghi\u1ec7p d\u1ea1ng cu\u1ed9n v\u00e1t c\u1ea1nh<\/strong><\/em><\/a>&nbsp;for form-factor and traceability documentation standards.<\/p><p>If your traceability review also involves coil length planning and changeover scheduling, see&nbsp;<a href=\"https:\/\/maxtormetal.com\/vi\/reducing-coil-change-frequency-oee-profit-gains\/\" target=\"_blank\" rel=\"noreferrer noopener\"><em><strong>OEE and Profit Gains from Reducing Coil Change Frequency<\/strong><\/em><\/a>&nbsp;for the supply-side consistency controls that make longer runs reliable.<\/p><h3 class=\"wp-block-heading\" id=\"276b4b55-d17a-47b1-b7e5-8563c625f3b6\">Retest records and change control<\/h3><p>Retests are unavoidable; uncontrolled retests are expensive.<\/p><p>Checklist (retest discipline):<\/p><ul><li>Record retest triggers (what failed, where, and why you retested).<\/li>\n\n<li>Store test method, instrument, operator, and sample location.<\/li>\n\n<li>Tie retest results to a&nbsp;<strong>disposition decision<\/strong>&nbsp;(accept\/hold\/reject) and keep the revision history.<\/li>\n\n<li>If the PO\/spec changes, lock the revision used for acceptance of each lot.<\/li><\/ul><h3 class=\"wp-block-heading\" id=\"6d05d509-90ba-447a-8e34-5fa80c09d234\">Supplier collaboration for verification<\/h3><p>Collaboration here doesn\u2019t mean marketing\u2014it means preventing \u201cpaper-compliant, performance-unstable\u201d material from entering production.<\/p><p>Practical collaboration checklist:<\/p><ul><li>Align on what the 3.1 must include (heat no., grade\/spec callout, chemistry, hardness where applicable).<\/li>\n\n<li>Agree on a discrepancy path: who re-tests, with what method, and how chain-of-custody is documented.<\/li>\n\n<li>Lock a shared definition of \u201cequivalent grade\u201d acceptance (or forbid it unless approved).<\/li><\/ul><p><strong>Maxtor Metal<\/strong>&nbsp;provides customers with pre-aligned documentation packages \u2014 including certificate format templates, coil tag conventions, and verification record structures \u2014 so that traceability decisions remain consistent after slitting, leveling, and lot splitting. Customers running formal incoming QA programs can request the documentation alignment checklist from the Maxtor Metal technical team before the first shipment.<\/p><h3 class=\"wp-block-heading\" id=\"1ee2e0ab-8927-4a2d-8681-70775f9004bf\">Audit &amp; Re-verification Triggers<\/h3><p>To prevent quality issues from slipping into production, establish clear conditions that trigger a mandatory joint audit or secondary lab re-verification:<\/p><ul><li><strong>New Supplier \/ Subcontractor First Lot<\/strong>: Mandatory complete chemistry (OES) and 9-point hardness mapping on the initial 3 production heats.<\/li>\n\n<li><strong>Process Change Notification (PCN)<\/strong>: Any declared change in supplier annealing, heat treatment furnace, or slitting line parameters.<\/li>\n\n<li><strong>Consecutive Hardness or Microstructure Deviations<\/strong>: Occurrence of edge-to-center hardness scatter exceeding \u00b11.5 HRC across 3 consecutive coil lots.<\/li>\n\n<li><strong>Unexplained Production Tooling Failures<\/strong>: Immediate joint root-cause review if field blades exhibit premature micro-chipping or rapid edge dulling despite &#8220;paper-compliant&#8221; MTCs. For grid-blade designs specifically, slot-bottom fractures that recur despite compliant hardness readings often trace to geometric stress concentrations rather than material chemistry\u2014see <a href=\"https:\/\/maxtormetal.com\/vi\/grid-blade-snapping-slot-fillet-radius-r02mm-fix\/\" target=\"_blank\" rel=\"noreferrer noopener\"><em><strong>Stopping Grid Blade Snapping at Slot Bottoms<\/strong><\/em><\/a> for the fillet radius, EDM recast layer, and double-temper controls that address this failure mode.<\/li><\/ul><p>When tooling failures trigger a root-cause review, the regrind decision framework provides the measurable inspection thresholds \u2014 chipping depth, remaining thickness, thermal burn criteria, and grinding economics \u2014 needed to determine whether a blade is recoverable or must be scrapped. See the <strong><a href=\"https:\/\/maxtormetal.com\/vi\/regrinding-industrial-strip-blades-sharpening-vs-scrap\/\" target=\"_blank\" rel=\"noreferrer noopener\"><em>Regrinding Industrial Strip Blades: Sharpening vs Scrap Guide<\/em><\/a><\/strong> for the full shop-floor protocol.<\/p><h2 class=\"wp-block-heading\" id=\"08dfec58-74d3-4076-8243-d1f37e0d37d1\">FAQs:<\/h2><h3 class=\"wp-block-heading\" id=\"c7243bb6-4c0f-4147-98bc-61e8de394f80\">H\u1ecfi: L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 \u0111\u1ecdc nhanh MTC th\u00e9p c\u00f4ng c\u1ee5 cho dao c\u1eaft th\u00e9p d\u1ea3i?<\/h3><p>\u0110\u00e1p: B\u1eaft \u0111\u1ea7u t\u1eeb ph\u1ea7n ti\u00eau \u0111\u1ec1: x\u00e1c minh ch\u1ee9ng ch\u1ec9 EN 10204 3.1, nh\u00e0 cung c\u1ea5p, m\u00e1c th\u00e9p v\u00e0 s\u1ed1 m\u1ebb n\u1ea5u (heat number). Sau \u0111\u00f3, \u0111\u1ed1i chi\u1ebfu b\u1ea3ng th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc kh\u1edbp v\u1edbi PO\/th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u00e0 s\u1ed1 m\u1ebb n\u1ea5u ph\u1ea3i li\u00ean k\u1ebft v\u1edbi th\u1ebb cu\u1ed9n th\u00e9p. Cu\u1ed1i c\u00f9ng, ki\u1ec3m ch\u1ee9ng \u0111\u1ed9 \u0111\u1ed3ng \u0111\u1ec1u v\u1ec1 \u0111\u1ed9 c\u1ee9ng b\u1eb1ng bi\u1ec3u \u0111\u1ed3 \u0111o \u0111\u01a1n gi\u1ea3n (\u0111\u1ea7u\/gi\u1eefa\/cu\u1ed1i \u00d7 m\u00e9p\/t\u00e2m\/m\u00e9p).<\/p><h3 class=\"wp-block-heading\" id=\"4161c422-50cf-4da0-8660-c1d693bcfcee\">H\u1ecfi: S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa ch\u1ee9ng ch\u1ec9 EN 10204 3.1 v\u00e0 3.2 l\u00e0 g\u00ec?<\/h3><p>\u0110\u00e1p: Ch\u1ee9ng ch\u1ec9 3.1 do nh\u00e0 s\u1ea3n xu\u1ea5t ph\u00e1t h\u00e0nh k\u00e8m theo k\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m v\u00e0 \u0111\u01b0\u1ee3c k\u00fd b\u1edfi \u0111\u1ea1i di\u1ec7n ki\u1ec3m \u0111\u1ecbnh \u0111\u01b0\u1ee3c \u1ee7y quy\u1ec1n. Ch\u1ee9ng ch\u1ec9 3.2 y\u00eau c\u1ea7u c\u00f3 th\u00eam s\u1ef1 tham gia \u0111\u1ed9c l\u1eadp (b\u00ean th\u1ee9 ba ho\u1eb7c \u0111\u1ea1i di\u1ec7n b\u00ean mua) t\u00f9y theo y\u00eau c\u1ea7u h\u1ee3p \u0111\u1ed3ng. Khi r\u1ee7i ro cao h\u01a1n ho\u1eb7c quy tr\u00ecnh ki\u1ec3m to\u00e1n\/\u0111\u00e1nh gi\u00e1 nghi\u00eam ng\u1eb7t h\u01a1n, ch\u1ee9ng ch\u1ec9 3.2 s\u1ebd \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng th\u01b0\u1eddng xuy\u00ean h\u01a1n.<\/p><h3 class=\"wp-block-heading\" id=\"9268e6bc-25a8-4074-bd9c-cfd59b2b6034\">H\u1ecfi: Ki\u1ec3m tra PMI\/XRF c\u00f3 th\u1ec3 x\u00e1c minh ch\u00ednh x\u00e1c th\u00e9p c\u00f4ng c\u1ee5 D2 ho\u1eb7c M2 kh\u00f4ng?<\/h3><p>\u0110\u00e1p: Ph\u01b0\u01a1ng ph\u00e1p PMI\/XRF r\u1ea5t h\u1eefu \u00edch \u0111\u1ec3 x\u00e1c nh\u1eadn nh\u00f3m h\u1ee3p kim v\u00e0 nhi\u1ec1u nguy\u00ean t\u1ed1 h\u1ee3p kim, nh\u01b0ng b\u1ecb gi\u1edbi h\u1ea1n \u0111\u1ed1i v\u1edbi th\u00e0nh ph\u1ea7n c\u00e1c-bon. N\u1ebfu quy\u1ebft \u0111\u1ecbnh nghi\u1ec7m thu c\u1ee7a b\u1ea1n ph\u1ee5 thu\u1ed9c v\u00e0o \u0111\u1eb7c t\u00ednh nh\u1ea1y c\u1ea3m v\u1edbi c\u00e1c-bon (\u0111\u1ed9 c\u1ee9ng, kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n), h\u00e3y s\u1eed d\u1ee5ng spark-OES ho\u1eb7c ICP-OES theo quy tr\u00ecnh SOP c\u1ee7a b\u1ea1n.<\/p><h3 class=\"wp-block-heading\" id=\"3d4d2192-2f1a-4bad-a5d2-85ed11b09f6c\">H\u1ecfi: C\u1ea7n \u0111o bao nhi\u00eau \u0111i\u1ec3m ki\u1ec3m tra \u0111\u1ed9 c\u1ee9ng Rockwell tr\u00ean m\u1ed9t cu\u1ed9n th\u00e9p d\u1ea3i?<\/h3><p>\u0110\u00e1p: H\u00e3y s\u1eed d\u1ee5ng s\u01a1 \u0111\u1ed3 \u0111o c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n s\u1ef1 bi\u1ebfn thi\u00ean theo c\u1ea3 chi\u1ec1u r\u1ed9ng v\u00e0 chi\u1ec1u d\u00e0i: \u0111\u1ea7u\/gi\u1eefa\/cu\u1ed1i theo chi\u1ec1u d\u00e0i cu\u1ed9n th\u00e9p, v\u00e0 m\u00e9p\/t\u00e2m\/m\u00e9p theo chi\u1ec1u r\u1ed9ng. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y t\u1ea1o ra 9 \u0111i\u1ec3m \u0111o nh\u01b0 m\u1ed9t m\u1ee9c t\u1ed1i thi\u1ec3u th\u1ef1c t\u1ebf \u0111\u1ec3 ki\u1ec3m tra \u0111\u1ed9 \u0111\u1ed3ng \u0111\u1ec1u; h\u00e3y b\u1ed5 sung th\u00eam \u0111i\u1ec3m \u0111o n\u1ebfu l\u1ecbch s\u1eed quy tr\u00ecnh c\u1ee7a b\u1ea1n cho th\u1ea5y c\u00f3 s\u1ef1 ph\u00e2n t\u00e1n c\u1ee5c b\u1ed9.<\/p><h3 class=\"wp-block-heading\" id=\"4b7a1303-dc5f-44dd-8b44-599ff13b4bfe\">H\u1ecfi: Nguy\u00ean nh\u00e2n n\u00e0o g\u00e2y ra s\u1ef1 bi\u1ebfn thi\u00ean \u0111\u1ed9 c\u1ee9ng t\u1eeb m\u00e9p v\u00e0o t\u00e2m tr\u00ean dao c\u1eaft th\u00e9p d\u1ea3i?<\/h3><p>\u0110\u00e1p: C\u00e1c nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn bao g\u1ed3m s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 tr\u1ea1ng th\u00e1i b\u1ec1 m\u1eb7t, hi\u1ec7n t\u01b0\u1ee3ng tho\u00e1t c\u00e1c-bon g\u1ea7n m\u00e9p v\u00e0 t\u00ednh kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u trong qu\u00e1 tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t. D\u1ea5u hi\u1ec7u nh\u1eadn bi\u1ebft th\u01b0\u1eddng l\u00e0 \"m\u00e9p \u0111\u1ed9 c\u1ee9ng th\u1ea5p, t\u00e2m \u0111\u1ea1t chu\u1ea9n\". N\u1ebfu xu\u1ea5t hi\u1ec7n hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y, h\u00e3y b\u1ed5 sung ki\u1ec3m tra \u0111\u1ed9 tho\u00e1t c\u00e1c-bon v\u00e0 si\u1ebft ch\u1eb7t quy tr\u00ecnh ghi h\u1ed3 s\u01a1 v\u1ecb tr\u00ed l\u1ea5y m\u1eabu.<\/p><h3 class=\"wp-block-heading\" id=\"d9fbfefd-e3f6-4fd0-8c33-bd4f2ad364da\">H\u1ecfi: Ti\u00eau chu\u1ea9n ASTM E1077 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m g\u00ec trong quy tr\u00ecnh QA th\u00e9p c\u00f4ng c\u1ee5?<\/h3><p>\u0110\u00e1p: Ti\u00eau chu\u1ea9n ASTM E1077 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 s\u00e2u l\u1edbp tho\u00e1t c\u00e1c-bon tr\u00ean c\u00e1c m\u1eabu th\u1eed nghi\u1ec7m th\u00e9p. Trong th\u1ef1c t\u1ebf, ti\u00eau chu\u1ea9n n\u00e0y h\u1ed7 tr\u1ee3 c\u00e1c quy\u1ebft \u0111\u1ecbnh nghi\u1ec7m thu v\u00e0 ph\u00e2n t\u00edch nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5 (root-cause) khi \u0111\u1ed9 m\u1ec1m b\u1ec1 m\u1eb7t \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a dao c\u1eaft, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u1edf th\u00e9p d\u1ea3i m\u1ecfng - n\u01a1i v\u00f9ng b\u1ec1 m\u1eb7t \u0111\u00f3ng vai tr\u00f2 quy\u1ebft \u0111\u1ecbnh.<\/p><h3 class=\"wp-block-heading\" id=\"e14c86d0-f453-4386-99b6-8ac0de013969\">H\u1ecfi: T\u00f4i n\u00ean l\u00e0m g\u00ec n\u1ebfu th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc tr\u00ean MTC \u0111\u1ea1t chu\u1ea9n nh\u01b0ng ki\u1ec3m tra \u0111\u1ed9 c\u1ee9ng l\u1ea1i kh\u00f4ng \u0111\u1ea1t?<\/h3><p>\u0110\u00e1p: H\u00e3y t\u1ea1m gi\u1eef l\u00f4 h\u00e0ng v\u00e0 x\u00e1c minh t\u00ednh h\u1ee3p l\u1ec7 c\u1ee7a ph\u00e9p \u0111o tr\u01b0\u1edbc (s\u1ef1 ph\u00f9 h\u1ee3p c\u1ee7a thang \u0111o\/\u0111\u1ed9 d\u00e0y, b\u1ec7 \u0111\u1ee1, kho\u1ea3ng c\u00e1ch c\u00e1c \u0111i\u1ec3m \u0111o v\u00e0 kh\u00e2u chu\u1ea9n b\u1ecb m\u1eabu). N\u1ebfu ph\u00e9p \u0111o h\u1ee3p l\u1ec7, h\u00e3y x\u1eed l\u00fd theo quy tr\u00ecnh h\u00e0ng kh\u00f4ng ph\u00f9 h\u1ee3p (nonconformance): l\u1ea5y m\u1eabu l\u1ea1i c\u00f3 ghi h\u1ed3 s\u01a1 chu\u1ed7i cung \u1ee9ng\/b\u1ea3o qu\u1ea3n m\u1eabu (chain-of-custody), \u0111\u1ed1i chi\u1ebfu v\u1edbi y\u00eau c\u1ea7u PO\/th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u00e0 \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh x\u1eed l\u00fd l\u00f4 h\u00e0ng (ch\u1ea5p nh\u1eadn c\u00f3 \u0111i\u1ec1u ki\u1ec7n, h\u1ea1 c\u1ea5p s\u1eed d\u1ee5ng ho\u1eb7c tr\u1ea3 h\u00e0ng\/lo\u1ea1i b\u1ecf).<\/p><h3 class=\"wp-block-heading\" id=\"0db63fc9-715c-46ec-8de1-a7e98efe4c5d\">H\u1ecfi: T\u00f4i c\u00f3 c\u1ea7n x\u00e1c minh l\u1ea1i sau khi x\u1ea3 cu\u1ed9n\/c\u1eaft d\u1ea3i (slitting) ho\u1eb7c m\u00e0i (grinding) kh\u00f4ng?<\/h3><p>\u0110\u00e1p: C\u00f3, n\u1ebfu c\u00e1c c\u00f4ng \u0111o\u1ea1n \u0111\u00f3 l\u00e0m thay \u0111\u1ed5i chu\u1ed7i truy xu\u1ea5t ngu\u1ed3n g\u1ed1c (chia t\u00e1ch l\u00f4 h\u00e0ng) ho\u1eb7c l\u00e0m thay \u0111\u1ed5i b\u1ec1 m\u1eb7t l\u00e0m vi\u1ec7c. H\u00e3y x\u00e1c minh l\u1ea1i \u00edt nh\u1ea5t l\u00e0 kh\u1ea3 n\u0103ng truy xu\u1ea5t (t\u1eeb s\u1ed1 m\u1ebb n\u1ea5u sang s\u1ed1 l\u00f4 n\u1ed9i b\u1ed9) v\u00e0 \u0111\u1ed9 c\u1ee9ng\/tr\u1ea1ng th\u00e1i b\u1ec1 m\u1eb7t d\u1ef1a tr\u00ean \u0111\u00e1nh gi\u00e1 r\u1ee7i ro\u2014\u0111\u1eb7c bi\u1ec7t l\u00e0 sau khi m\u00e0i ho\u1eb7c x\u1eed l\u00fd nhi\u1ec7t.<\/p><h2 class=\"wp-block-heading\" id=\"2e0bcd01-f159-47c8-aa75-e58a951c2ea9\">K\u1ebft lu\u1eadn<\/h2><div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"898\" src=\"https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/05\/Blade-Strip-Steel-5.11.jpg\" alt=\"reading tool steel MTC\" class=\"wp-image-7633\" style=\"aspect-ratio:1.5;object-fit:cover;width:700px;height:auto\" srcset=\"https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/05\/Blade-Strip-Steel-5.11.jpg 900w, https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/05\/Blade-Strip-Steel-5.11-300x300.jpg 300w, https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/05\/Blade-Strip-Steel-5.11-150x150.jpg 150w, https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/05\/Blade-Strip-Steel-5.11-768x766.jpg 768w, https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/05\/Blade-Strip-Steel-5.11-12x12.jpg 12w, https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/05\/Blade-Strip-Steel-5.11-600x599.jpg 600w, https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/05\/Blade-Strip-Steel-5.11-100x100.jpg 100w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><\/figure><\/div><p>A clean checklist is only valuable if it reduces real waste: fewer retests, fewer surprises on the grinder, and fewer unplanned stops in production. The acceptance path covered in this guide comes down to four linked checks: confirm the EN 10204 3.1 certificate is correctly issued and signed; verify chemistry against PO\/spec with the right method (PMI for screening, OES\/ICP for carbon-critical decisions); map hardness at head\/mid\/tail \u00d7 edge\/center\/edge and interpret the spread, not just the average; and verify decarburization depth when the application is edge-sensitive.<\/p><p>Traceability is what ties these checks together. If you can connect the MTC heat number to the coil tag, to your receiving log, and through to internal lot numbers after slitting or grinding\u2014you have a defensible QA record. If any link in that chain is missing, you have paperwork, not traceability. Re-verify hardness and surface condition after any secondary process (slitting, grinding, heat treatment) that changes the working surface or splits the lot identity.<\/p><p>Consistent results require consistent identity. That&#8217;s the same internal discipline we apply at&nbsp;<strong>Maxtor Metal&nbsp;<\/strong>when aligning documentation and verification steps between supplier and buyer.<\/p><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h3 class=\"wp-block-heading\" id=\"b9411014-6743-4876-b0e0-d8f88a33a9d9\">Author Bio<\/h3><p><strong>Jesse Xu<\/strong><br><em>Senior Quality Engineer | Maxtor Metal (QA Department)<\/em><\/p><p>Jesse Xu is a Senior Quality Engineer at Maxtor Metal with over 15 years of hands-on experience in tool steel metallurgical quality assurance, material inspection, and failure analysis. Specializing in diagnosing complex blade performance issues\u2014such as distinguishing heat treatment defects from material segregation in chipping and premature wear\u2014he helps global equipment manufacturers ensure total quality from raw material receiving to finished precision cutting tools. Jesse holds prestigious industry credentials, including&nbsp;<strong>ASQ CQE<\/strong>&nbsp;(Certified Quality Engineer),&nbsp;<strong>Chuy\u00ean gia \u0111\u00e1nh gi\u00e1 tr\u01b0\u1edfng ISO 9001<\/strong>, V\u00e0&nbsp;<strong>ASNT C\u1ea5p \u0111\u1ed9 II<\/strong>&nbsp;certifications.<\/p>","protected":false},"excerpt":{"rendered":"<p>Quick Answer: To read a tool steel MTC for strip blades, start at the header \u2014 confirm EN 10204 3.1 certificate type, supplier identity, steel grade, and heat number. Then cross-check the chemistry table against your PO\/spec (using ASTM A681 or ISO 4957 as the reference standard). Verify hardness uniformity with a 9-point map (head\/mid\/tail [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":7989,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1274,1],"tags":[1287,1288],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.6 (Yoast SEO v23.6) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Reading Tool Steel MTC: Strip Blade QA Checklist<\/title>\n<meta name=\"description\" content=\"Read tool steel MTC for strip blades: verify EN 10204 3.1, heat number traceability, chemistry bands, hardness map, decarb per ASTM E18\/E1077\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/maxtormetal.com\/vi\/reading-tool-steel-mtc-strip-blades-qa-checklist\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Reading Tool Steel MTC for Strip Blades: A Practical QA Checklist for Chemistry, Hardness, and Traceability\" \/>\n<meta property=\"og:description\" content=\"Read tool steel MTC for strip blades: verify EN 10204 3.1, heat number traceability, chemistry bands, hardness map, decarb per ASTM E18\/E1077\" \/>\n<meta property=\"og:url\" content=\"https:\/\/maxtormetal.com\/vi\/reading-tool-steel-mtc-strip-blades-qa-checklist\/\" \/>\n<meta property=\"og:site_name\" content=\"Maxtor Metal | Custom Industrial Blade Manufacturer &amp; Supplier\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/maxtormetalindustrial\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/mengli.tang.3\" \/>\n<meta property=\"article:published_time\" content=\"2026-08-03T02:00:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-09T13:30:28+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/08\/image.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"1536\" \/>\n\t<meta property=\"og:image:height\" content=\"1024\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Tommy\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":[\"Article\",\"BlogPosting\"],\"@id\":\"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/\"},\"author\":{\"name\":\"Tommy\",\"@id\":\"https:\/\/maxtormetal.com\/fr\/#\/schema\/person\/94f8f44e6d04f5d162dc94aeca3da13a\"},\"headline\":\"Reading Tool Steel MTC for Strip Blades: A Practical QA Checklist for Chemistry, Hardness, and Traceability\",\"datePublished\":\"2026-08-03T02:00:00+00:00\",\"dateModified\":\"2026-10-09T13:30:28+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/\"},\"wordCount\":2847,\"publisher\":{\"@id\":\"https:\/\/maxtormetal.com\/fr\/#organization\"},\"image\":{\"@id\":\"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/08\/image.jpeg\",\"keywords\":[\"reading tool steel MTC\",\"steel MTC\"],\"articleSection\":[\"Blade Strip Steel\",\"Blog\"],\"inLanguage\":\"vi\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/\",\"url\":\"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/\",\"name\":\"Reading Tool Steel MTC: Strip Blade QA Checklist\",\"isPartOf\":{\"@id\":\"https:\/\/maxtormetal.com\/fr\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/08\/image.jpeg\",\"datePublished\":\"2026-08-03T02:00:00+00:00\",\"dateModified\":\"2026-10-09T13:30:28+00:00\",\"description\":\"Read tool steel MTC for strip blades: verify EN 10204 3.1, heat number traceability, chemistry bands, hardness map, decarb per ASTM E18\/E1077\",\"breadcrumb\":{\"@id\":\"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/#breadcrumb\"},\"inLanguage\":\"vi\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"vi\",\"@id\":\"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/#primaryimage\",\"url\":\"https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/08\/image.jpeg\",\"contentUrl\":\"https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/08\/image.jpeg\",\"width\":1536,\"height\":1024,\"caption\":\"steel MTC\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/maxtormetal.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Reading Tool Steel MTC for Strip Blades: A Practical QA Checklist for Chemistry, Hardness, and Traceability\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/maxtormetal.com\/fr\/#website\",\"url\":\"https:\/\/maxtormetal.com\/fr\/\",\"name\":\"Maxtor Metal | Custom Industrial Blade Manufacturer &amp; Supplier\",\"description\":\"Mechanical blades and knives supplier for all machines made by China\",\"publisher\":{\"@id\":\"https:\/\/maxtormetal.com\/fr\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/maxtormetal.com\/fr\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"vi\"},{\"@type\":[\"Organization\",\"Place\"],\"@id\":\"https:\/\/maxtormetal.com\/fr\/#organization\",\"name\":\"Maxtor Metal\",\"alternateName\":\"Metal Industrial\",\"url\":\"https:\/\/maxtormetal.com\/fr\/\",\"logo\":{\"@id\":\"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/#local-main-organization-logo\"},\"image\":{\"@id\":\"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/#local-main-organization-logo\"},\"sameAs\":[\"https:\/\/www.facebook.com\/maxtormetalindustrial\",\"https:\/\/www.linkedin.com\/company\/maxtormetal\/\"],\"description\":\"Maxtor Metal (formerly known as Metal Industrial) is a custom industrial blade manufacturer based in Nanjing, China. Established in 2006 under Nanjing Metal Industrial CO., Limited, we specialize in manufacturing industrial machine blades, machine knives, and providing regrinding services for clients in over 80 countries worldwide.\",\"legalName\":\"Nanjing Metal Industrial CO., Limited\",\"foundingDate\":\"2006-02-18\",\"numberOfEmployees\":{\"@type\":\"QuantitativeValue\",\"minValue\":\"11\",\"maxValue\":\"50\"},\"address\":{\"@id\":\"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/#local-main-place-address\"},\"telephone\":[],\"openingHoursSpecification\":[{\"@type\":\"OpeningHoursSpecification\",\"dayOfWeek\":[\"Monday\",\"Tuesday\",\"Wednesday\",\"Thursday\",\"Friday\",\"Saturday\",\"Sunday\"],\"opens\":\"09:00\",\"closes\":\"17:00\"}],\"email\":\"sales@maxtormetal.com\",\"areaServed\":\"Worldwide\",\"globalLocationNumber\":\"+86-158-6180-3357\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/maxtormetal.com\/fr\/#\/schema\/person\/94f8f44e6d04f5d162dc94aeca3da13a\",\"name\":\"Tommy\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"vi\",\"@id\":\"https:\/\/maxtormetal.com\/fr\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/maxtormetal.com\/wp-content\/uploads\/2023\/08\/cropped-logo-\u526f\u672c-\u526f\u672c-1.png\",\"contentUrl\":\"https:\/\/maxtormetal.com\/wp-content\/uploads\/2023\/08\/cropped-logo-\u526f\u672c-\u526f\u672c-1.png\",\"caption\":\"Tommy\"},\"description\":\"With over 13 years of experience in industrial blade manufacturing, production management, and process optimization. Whether it's customized solutions or technical support, I am committed to delivering top-tier service. If you require mechanical blade solutions and a reliable partner, I am your ideal choice. Feel free to reach out anytime\u2014let's collaborate to elevate your business to new heights.\",\"sameAs\":[\"http:\/\/maxtormetal.com\",\"https:\/\/www.facebook.com\/mengli.tang.3\",\"https:\/\/www.linkedin.com\/in\/metalindustrial\/\",\"https:\/\/www.youtube.com\/@Metal-Tommy\"],\"url\":\"https:\/\/maxtormetal.com\/vi\/author\/maxtormetal-com\/\"},{\"@type\":\"PostalAddress\",\"@id\":\"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/#local-main-place-address\",\"streetAddress\":\"Mingjue Industrial Park, Lishui\",\"addressLocality\":\"Nanjing\",\"postalCode\":\"211223\",\"addressRegion\":\"Jiangsu\",\"addressCountry\":\"CN\"},{\"@type\":\"ImageObject\",\"inLanguage\":\"vi\",\"@id\":\"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/#local-main-organization-logo\",\"url\":\"https:\/\/maxtormetal.com\/wp-content\/uploads\/2023\/08\/cropped-cropped-logo-\u526f\u672c-\u526f\u672c-e1693303172756-1.png\",\"contentUrl\":\"https:\/\/maxtormetal.com\/wp-content\/uploads\/2023\/08\/cropped-cropped-logo-\u526f\u672c-\u526f\u672c-e1693303172756-1.png\",\"width\":441,\"height\":132,\"caption\":\"Maxtor Metal\"}]}<\/script>\n<meta name=\"geo.placename\" content=\"Nanjing\" \/>\n<meta name=\"geo.region\" content=\"Trung Qu\u1ed1c\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"\u0110\u1ecdc MTC th\u00e9p c\u00f4ng c\u1ee5: Checklist QA cho dao c\u1eaft th\u00e9p cu\u1ed9n\/th\u00e9p d\u1ea3i","description":"\u0110\u1ecdc MTC th\u00e9p c\u00f4ng c\u1ee5 cho dao c\u1eaft th\u00e9p d\u1ea3i: x\u00e1c minh EN 10204 3.1, truy xu\u1ea5t ngu\u1ed3n g\u1ed1c s\u1ed1 m\u1ebb n\u1ea5u (heat number), th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc, bi\u1ec3u \u0111\u1ed3 \u0111\u1ed9 c\u1ee9ng, \u0111\u1ed9 tho\u00e1t c\u00e1c-bon theo ASTM E18\/E1077.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/maxtormetal.com\/vi\/reading-tool-steel-mtc-strip-blades-qa-checklist\/","og_locale":"vi_VN","og_type":"article","og_title":"Reading Tool Steel MTC for Strip Blades: A Practical QA Checklist for Chemistry, Hardness, and Traceability","og_description":"Read tool steel MTC for strip blades: verify EN 10204 3.1, heat number traceability, chemistry bands, hardness map, decarb per ASTM E18\/E1077","og_url":"https:\/\/maxtormetal.com\/vi\/reading-tool-steel-mtc-strip-blades-qa-checklist\/","og_site_name":"Maxtor Metal | Custom Industrial Blade Manufacturer &amp; Supplier","article_publisher":"https:\/\/www.facebook.com\/maxtormetalindustrial","article_author":"https:\/\/www.facebook.com\/mengli.tang.3","article_published_time":"2026-08-03T02:00:00+00:00","article_modified_time":"2026-10-09T13:30:28+00:00","og_image":[{"width":1536,"height":1024,"url":"https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/08\/image.jpeg","type":"image\/jpeg"}],"author":"Tommy","twitter_card":"summary_large_image","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":["Article","BlogPosting"],"@id":"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/#article","isPartOf":{"@id":"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/"},"author":{"name":"Tommy","@id":"https:\/\/maxtormetal.com\/fr\/#\/schema\/person\/94f8f44e6d04f5d162dc94aeca3da13a"},"headline":"Reading Tool Steel MTC for Strip Blades: A Practical QA Checklist for Chemistry, Hardness, and Traceability","datePublished":"2026-08-03T02:00:00+00:00","dateModified":"2026-10-09T13:30:28+00:00","mainEntityOfPage":{"@id":"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/"},"wordCount":2847,"publisher":{"@id":"https:\/\/maxtormetal.com\/fr\/#organization"},"image":{"@id":"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/#primaryimage"},"thumbnailUrl":"https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/08\/image.jpeg","keywords":["reading tool steel MTC","steel MTC"],"articleSection":["Blade Strip Steel","Blog"],"inLanguage":"vi"},{"@type":"WebPage","@id":"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/","url":"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/","name":"\u0110\u1ecdc MTC th\u00e9p c\u00f4ng c\u1ee5: Checklist QA cho dao c\u1eaft th\u00e9p cu\u1ed9n\/th\u00e9p d\u1ea3i","isPartOf":{"@id":"https:\/\/maxtormetal.com\/fr\/#website"},"primaryImageOfPage":{"@id":"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/#primaryimage"},"image":{"@id":"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/#primaryimage"},"thumbnailUrl":"https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/08\/image.jpeg","datePublished":"2026-08-03T02:00:00+00:00","dateModified":"2026-10-09T13:30:28+00:00","description":"\u0110\u1ecdc MTC th\u00e9p c\u00f4ng c\u1ee5 cho dao c\u1eaft th\u00e9p d\u1ea3i: x\u00e1c minh EN 10204 3.1, truy xu\u1ea5t ngu\u1ed3n g\u1ed1c s\u1ed1 m\u1ebb n\u1ea5u (heat number), th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc, bi\u1ec3u \u0111\u1ed3 \u0111\u1ed9 c\u1ee9ng, \u0111\u1ed9 tho\u00e1t c\u00e1c-bon theo ASTM E18\/E1077.","breadcrumb":{"@id":"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/#breadcrumb"},"inLanguage":"vi","potentialAction":[{"@type":"ReadAction","target":["https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/"]}]},{"@type":"ImageObject","inLanguage":"vi","@id":"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/#primaryimage","url":"https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/08\/image.jpeg","contentUrl":"https:\/\/maxtormetal.com\/wp-content\/uploads\/2026\/08\/image.jpeg","width":1536,"height":1024,"caption":"steel MTC"},{"@type":"BreadcrumbList","@id":"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/maxtormetal.com\/"},{"@type":"ListItem","position":2,"name":"Reading Tool Steel MTC for Strip Blades: A Practical QA Checklist for Chemistry, Hardness, and Traceability"}]},{"@type":"WebSite","@id":"https:\/\/maxtormetal.com\/fr\/#website","url":"https:\/\/maxtormetal.com\/fr\/","name":"Maxtor Metal | Nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 cung c\u1ea5p l\u01b0\u1ee1i dao c\u00f4ng nghi\u1ec7p theo y\u00eau c\u1ea7u","description":"Nh\u00e0 cung c\u1ea5p l\u01b0\u1ee1i dao v\u00e0 dao c\u01a1 kh\u00ed cho t\u1ea5t c\u1ea3 c\u00e1c m\u00e1y m\u00f3c s\u1ea3n xu\u1ea5t t\u1ea1i Trung Qu\u1ed1c.","publisher":{"@id":"https:\/\/maxtormetal.com\/fr\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/maxtormetal.com\/fr\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"vi"},{"@type":["Organization","Place"],"@id":"https:\/\/maxtormetal.com\/fr\/#organization","name":"Maxtor Metal","alternateName":"Metal Industrial","url":"https:\/\/maxtormetal.com\/fr\/","logo":{"@id":"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/#local-main-organization-logo"},"image":{"@id":"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/#local-main-organization-logo"},"sameAs":["https:\/\/www.facebook.com\/maxtormetalindustrial","https:\/\/www.linkedin.com\/company\/maxtormetal\/"],"description":"Maxtor Metal (tr\u01b0\u1edbc \u0111\u00e2y l\u00e0 Metal Industrial) l\u00e0 nh\u00e0 s\u1ea3n xu\u1ea5t l\u01b0\u1ee1i dao c\u00f4ng nghi\u1ec7p theo y\u00eau c\u1ea7u c\u00f3 tr\u1ee5 s\u1edf t\u1ea1i Nam Kinh, Trung Qu\u1ed1c. \u0110\u01b0\u1ee3c th\u00e0nh l\u1eadp v\u00e0o n\u0103m 2006 v\u1edbi t\u00ean g\u1ecdi Nanjing Metal Industrial CO., Limited, ch\u00fang t\u00f4i chuy\u00ean s\u1ea3n xu\u1ea5t l\u01b0\u1ee1i dao m\u00e1y c\u00f4ng nghi\u1ec7p, dao m\u00e1y v\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 m\u00e0i l\u1ea1i l\u01b0\u1ee1i dao cho kh\u00e1ch h\u00e0ng t\u1ea1i h\u01a1n 80 qu\u1ed1c gia tr\u00ean to\u00e0n th\u1ebf gi\u1edbi.","legalName":"Nanjing Metal Industrial CO., Limited","foundingDate":"2006-02-18","numberOfEmployees":{"@type":"QuantitativeValue","minValue":"11","maxValue":"50"},"address":{"@id":"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/#local-main-place-address"},"telephone":[],"openingHoursSpecification":[{"@type":"OpeningHoursSpecification","dayOfWeek":["Monday","Tuesday","Wednesday","Thursday","Friday","Saturday","Sunday"],"opens":"09:00","closes":"17:00"}],"email":"sales@maxtormetal.com","areaServed":"Worldwide","globalLocationNumber":"+86-158-6180-3357"},{"@type":"Person","@id":"https:\/\/maxtormetal.com\/fr\/#\/schema\/person\/94f8f44e6d04f5d162dc94aeca3da13a","name":"Tommy","image":{"@type":"ImageObject","inLanguage":"vi","@id":"https:\/\/maxtormetal.com\/fr\/#\/schema\/person\/image\/","url":"https:\/\/maxtormetal.com\/wp-content\/uploads\/2023\/08\/cropped-logo-\u526f\u672c-\u526f\u672c-1.png","contentUrl":"https:\/\/maxtormetal.com\/wp-content\/uploads\/2023\/08\/cropped-logo-\u526f\u672c-\u526f\u672c-1.png","caption":"Tommy"},"description":"V\u1edbi h\u01a1n 13 n\u0103m kinh nghi\u1ec7m trong l\u0129nh v\u1ef1c s\u1ea3n xu\u1ea5t l\u01b0\u1ee1i dao c\u00f4ng nghi\u1ec7p, qu\u1ea3n l\u00fd s\u1ea3n xu\u1ea5t v\u00e0 t\u1ed1i \u01b0u h\u00f3a quy tr\u00ecnh. D\u00f9 l\u00e0 gi\u1ea3i ph\u00e1p t\u00f9y ch\u1ec9nh hay h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt, t\u00f4i lu\u00f4n cam k\u1ebft mang \u0111\u1ebfn d\u1ecbch v\u1ee5 h\u00e0ng \u0111\u1ea7u. N\u1ebfu b\u1ea1n c\u1ea7n gi\u1ea3i ph\u00e1p l\u01b0\u1ee1i dao c\u01a1 kh\u00ed v\u00e0 m\u1ed9t \u0111\u1ed1i t\u00e1c \u0111\u00e1ng tin c\u1eady, t\u00f4i ch\u00ednh l\u00e0 l\u1ef1a ch\u1ecdn l\u00fd t\u01b0\u1edfng. H\u00e3y li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i b\u1ea5t c\u1ee9 l\u00fac n\u00e0o\u2014h\u00e3y c\u00f9ng h\u1ee3p t\u00e1c \u0111\u1ec3 \u0111\u01b0a doanh nghi\u1ec7p c\u1ee7a b\u1ea1n l\u00ean m\u1ed9t t\u1ea7m cao m\u1edbi.","sameAs":["http:\/\/maxtormetal.com","https:\/\/www.facebook.com\/mengli.tang.3","https:\/\/www.linkedin.com\/in\/metalindustrial\/","https:\/\/www.youtube.com\/@Metal-Tommy"],"url":"https:\/\/maxtormetal.com\/vi\/author\/maxtormetal-com\/"},{"@type":"PostalAddress","@id":"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/#local-main-place-address","streetAddress":"Mingjue Industrial Park, Lishui","addressLocality":"Nanjing","postalCode":"211223","addressRegion":"Jiangsu","addressCountry":"CN"},{"@type":"ImageObject","inLanguage":"vi","@id":"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/#local-main-organization-logo","url":"https:\/\/maxtormetal.com\/wp-content\/uploads\/2023\/08\/cropped-cropped-logo-\u526f\u672c-\u526f\u672c-e1693303172756-1.png","contentUrl":"https:\/\/maxtormetal.com\/wp-content\/uploads\/2023\/08\/cropped-cropped-logo-\u526f\u672c-\u526f\u672c-e1693303172756-1.png","width":441,"height":132,"caption":"Maxtor Metal"}]},"geo.placename":"Nanjing","geo.region":"Trung Qu\u1ed1c"},"_links":{"self":[{"href":"https:\/\/maxtormetal.com\/vi\/wp-json\/wp\/v2\/posts\/7988"}],"collection":[{"href":"https:\/\/maxtormetal.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/maxtormetal.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/maxtormetal.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/maxtormetal.com\/vi\/wp-json\/wp\/v2\/comments?post=7988"}],"version-history":[{"count":3,"href":"https:\/\/maxtormetal.com\/vi\/wp-json\/wp\/v2\/posts\/7988\/revisions"}],"predecessor-version":[{"id":8136,"href":"https:\/\/maxtormetal.com\/vi\/wp-json\/wp\/v2\/posts\/7988\/revisions\/8136"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/maxtormetal.com\/vi\/wp-json\/wp\/v2\/media\/7989"}],"wp:attachment":[{"href":"https:\/\/maxtormetal.com\/vi\/wp-json\/wp\/v2\/media?parent=7988"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/maxtormetal.com\/vi\/wp-json\/wp\/v2\/categories?post=7988"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/maxtormetal.com\/vi\/wp-json\/wp\/v2\/tags?post=7988"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}