{"id":7988,"date":"2026-08-03T10:00:00","date_gmt":"2026-08-03T02:00:00","guid":{"rendered":"https:\/\/maxtormetal.com\/?p=7988"},"modified":"2026-08-02T21:39:45","modified_gmt":"2026-08-02T13:39:45","slug":"reading-tool-steel-mtc-strip-blades-qa-checklist","status":"publish","type":"post","link":"https:\/\/maxtormetal.com\/it\/reading-tool-steel-mtc-strip-blades-qa-checklist\/","title":{"rendered":"Lettura del MTC dell'acciaio per utensili per lame per nastri: Una check-list QA pratica per chimica, durezza e tracciabilit\u00e0"},"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=\"Lettura del MTC dell&#039;acciaio per utensili per lame per nastri: Una check-list QA pratica per chimica, durezza e tracciabilit\u00e0\" 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>Risposta rapida: Per leggere un MTC dell'acciaio per utensili per lame per nastri, iniziare dall'intestazione: confermare il tipo di certificato EN 10204 3.1, l'identit\u00e0 del fornitore, il grado dell'acciaio e il numero di colata. Quindi, verificare incrociando la tabella chimica con l'ordine d'acquisto o le specifiche (utilizzando ASTM A681 o ISO 4957 come standard di riferimento). Verificare l'uniformit\u00e0 della durezza con una mappatura a 9 punti (testa\/centro\/coda \u00d7 bordo\/centro\/bordo secondo ASTM E18) e aggiungere un controllo della decarburazione (ASTM E1077) quando le prestazioni del tagliente sono critiche. Il numero di colata deve collegare il MTC, l'etichetta del coils e i registri di lotto interni per formare una catena di tracciabilit\u00e0 completa.<\/p><p>Nella produzione di lame per nastri, un MTC dell'acciaio per utensili \u00e8 utile solo se aiuta a prendere una decisione di ricezione rapida e difendibile \u2014 e se \u00e8 ancora possibile dimostrare la tracciabilit\u00e0 dopo che il coil \u00e8 stato tagliato, rettificato e convertito in lotti interni. Questa pratiche check-list \u00e8 stata preparata dal team di Controllo Qualit\u00e0 e Ingegneria Metallurgica di Maxtor Metal, attingendo a oltre 15 anni di esperienza specializzata nella produzione di lame industriali, selezione di acciai personalizzati e rigidi protocolli di controllo qualit\u00e0 per allineare documentazione, etichettatura e verifica tra fornitore e acquirente.<\/p><ul><li><strong>Scopo:<\/strong>\u00a0enable fast, reliable acceptance decisions for strip blades<\/li>\n\n<li><strong>Scope:<\/strong>\u00a0EN 10204 3.1 focus (EN 10204 3.1 certificate), heat number, chemistry, hardness uniformity<\/li>\n\n<li><strong>Standards referenced:<\/strong>\u00a0EN 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>Key takeaway<\/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\">Concetti di base del certificato 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\u00a0<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>\u00a0or 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\u00a0<strong>EN 10204 3.1<\/strong>.<\/li>\n\n<li>It includes\u00a0<strong>measured results<\/strong>\u00a0(not just \u201cconforms\u201d).<\/li>\n\n<li>It is\u00a0<strong>signed\/validated<\/strong>\u00a0by 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\u00a0<strong>matches<\/strong>\u00a0the 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\u00a0<strong>inherit<\/strong>\u00a0the 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\">Come verificare la composizione chimica su un MTC dell'acciaio per utensili \u2014 e quando andare oltre il PMI<\/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=\"Come verificare la composizione chimica su un MTC dell&#039;acciaio per utensili \u2014 e quando andare oltre il PMI\" 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\u00a0<strong>your PO\/spec callout<\/strong>, typically referencing a tool-steel material standard such as\u00a0<a href=\"https:\/\/store.astm.org\/standards\/a681\" target=\"_blank\" rel=\"noreferrer noopener\"><em><strong>ASTM A681<\/strong><\/em><\/a>\u00a0O\u00a0<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>Grado<\/th><th>Carbonio (C)<\/th><th>Cromo (Cr)<\/th><th>Vanadium (V)<\/th><th>Molibdeno (Mo)<\/th><th>Tungsten (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>0.40 \u2013 0.60% (optional)<\/td><\/tr><\/tbody><\/table><\/figure><p><em>Reference source: ASTM A681 \/ ISO 4957 standard chemistry composition limits.<\/em><\/p><p>Checklist (chemistry acceptance):<\/p><ul><li>Grade is stated clearly (e.g.,\u00a0<strong>D2<\/strong>,\u00a0<strong>M2<\/strong>,\u00a0<strong>O1<\/strong>) and matches the PO.<\/li>\n\n<li>Chemistry table includes the critical alloying elements for that grade.<\/li>\n\n<li>Heat number on the chemistry report matches the heat number on the certificate header.<\/li><\/ul><p>For a detailed framework on how material grade validation \u2014 including heat-treatment batch records and XRD-based retained austenite verification \u2014 is specified for blade strip steel at the incoming stage, see<a href=\"https:\/\/maxtormetal.com\/it\/urschel-dicer-replacement-blades-440c-hrc-56-58-qa\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u00a0<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>Pro tip<\/strong>: For incoming coils intended for strip blades, set a \u201cstop the line\u201d rule for grade ambiguity (for example, ambiguous equivalents or missing grade designation). It\u2019s almost always cheaper than chasing performance scatter later.<\/p><\/blockquote><h3 class=\"wp-block-heading\" id=\"c509d33a-0f97-467c-b6d3-00f49711bd20\">PMI vs spark-OES\/ICP-OES<\/h3><p>Positive Material Identification (PMI) is often treated as a universal answer. It isn\u2019t.<\/p><ul><li>PMI\/XRF is strong for confirming\u00a0<strong>alloy family<\/strong>\u00a0and many elements, but it\u2019s limited for\u00a0<strong>carbon<\/strong>.<\/li>\n\n<li>Spark-OES and ICP-OES are typically used when you need\u00a0<strong>more complete chemistry<\/strong>, including carbon-critical acceptance decisions.<\/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>Checklist (use the right method):<\/p><ul><li>Use PMI\/XRF to screen: \u201cIs this broadly the correct alloy family?\u201d<\/li>\n\n<li>Use spark-OES or ICP-OES when the acceptance hinges on carbon-sensitive outcomes (hardness response, carbide network behavior), or when the contract requires lab confirmation.<\/li>\n\n<li>Document the method and instrument ID in the receiving record so results are auditable.<\/li><\/ul><h3 class=\"wp-block-heading\" id=\"7f5adb84-541f-4210-a602-2dab9e337d42\">Resolve discrepancies to PO\/spec<\/h3><p>When chemistry results conflict (MTC vs your test vs supplier re-test), the fastest way to avoid downtime is to follow a written escalation path.<\/p><p>Discrepancy-resolution checklist:<\/p><ol><li><strong>Freeze the identity<\/strong>: confirm heat number + coil tag + sample location (head\/mid\/tail).<\/li>\n\n<li><strong>Confirm the reference<\/strong>: pull the PO\/spec revision and identify which standard governs (e.g., ASTM A681 \/ ISO 4957).<\/li>\n\n<li><strong>Confirm methods<\/strong>: PMI vs OES vs ICP-OES; note detection limits and whether carbon was actually measured.<\/li>\n\n<li><strong>Re-sample intentionally<\/strong>: take a second sample from a different location and document chain-of-custody.<\/li>\n\n<li><strong>Decide action<\/strong>: accept, hold for disposition, downgrade use, or reject\u2014based on the governing spec and risk.<\/li><\/ol><h2 class=\"wp-block-heading\" id=\"88a20c1c-c718-4267-9ddd-d32d32fbbc9c\">Perch\u00e9 l'uniformit\u00e0 della durezza conta pi\u00f9 della media \u2014 e come mapparla sul nastro<\/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>For Rockwell testing, cite the official method:\u00a0<a href=\"https:\/\/store.astm.org\/e0018-22.html\" target=\"_blank\" rel=\"noreferrer noopener\"><em><strong>ASTM E18 Rockwell hardness test method<\/strong><\/em><\/a>. For practical context on why thickness\/support matter, NIST\u2019s guidance is a useful companion:\u00a0<a href=\"https:\/\/www.metallurgy.nist.gov\/reports\/recommendedpractice\/SP960_5.pdf\" target=\"_blank\" rel=\"noreferrer noopener\"><em><strong>NIST Rockwell hardness recommended practice<\/strong><\/em><\/a>.<\/p><h3 class=\"wp-block-heading\" id=\"c21acb2a-cecf-4ba1-a293-3673cad1137d\">Supply condition: Annealed vs. Pre-hardened<\/h3><p>Before evaluating hardness values, clarify the delivery state on the PO\/MTC:<\/p><ul><li><strong>Annealed strip (Soft)<\/strong>: Shipped in a spheroidized annealed state for severe forming, slitting, or punching before final heat treatment.<\/li>\n\n<li><strong>Pre-hardened \/ Hardened &amp; Tempered strip<\/strong>: Delivered at working hardness for direct grinding, edging, or light slitting without subsequent full quenching.<\/li><\/ul><figure class=\"wp-block-table\"><table><tbody><tr><th>Grado<\/th><th>Annealed State (Max Hardness)<\/th><th>Pre-hardened \/ Heat Treated State (Working Range)<\/th><\/tr><tr><td><strong>D2<\/strong><\/td><td>Max 255 HBW (~25 HRC)<\/td><td>58 \u2013 62 HRC<\/td><\/tr><tr><td><strong>M2<\/strong><\/td><td>Max 269 HBW (~27 HRC)<\/td><td>60 \u2013 65 HRC<\/td><\/tr><tr><td><strong>O1<\/strong><\/td><td>Max 229 HBW (~20 HRC)<\/td><td>56 \u2013 62 HRC<\/td><\/tr><\/tbody><\/table><\/figure><p>Mixing up delivery conditions is a common source of false rejects and false accepts \u2014 always confirm with the MTC header what condition the material is in before applying any hardness acceptance limit.<\/p><h3 class=\"wp-block-heading\" id=\"8ebd144f-16c9-4a5e-b808-c834246c3d19\">Strip sampling map: edge\u2013center\u2013edge; head\/mid\/tail<\/h3><p>Hardness scatter in strip often hides in two directions:<\/p><ul><li><strong>Across the width<\/strong>\u00a0(edge-to-edge differences from processing, decarb, or leveling)<\/li>\n\n<li><strong>Along the length<\/strong>\u00a0(head\/mid\/tail differences from heat treatment variation or coil-end effects)<\/li><\/ul><p>Checklist (minimum map that still finds problems):<\/p><ul><li>Sample at\u00a0<strong>head \/ mid \/ tail<\/strong>.<\/li>\n\n<li>At each length position, test\u00a0<strong>edge \/ center \/ edge<\/strong>.<\/li>\n\n<li>Record location IDs so a future complaint can be traced back to the zone.<\/li><\/ul><h3 class=\"wp-block-heading\" id=\"5941a4a9-4a27-4bad-b290-37e8e8401d95\">Setup validity: thickness, spacing, support<\/h3><p>A hardness number is only actionable if the test setup is valid for the strip geometry.<\/p><p>Setup checklist:<\/p><ul><li>Confirm you are using a Rockwell scale appropriate for the strip thickness.<\/li>\n\n<li>Ensure the specimen is\u00a0<strong>flat and well supported<\/strong>\u00a0on the proper anvil; avoid rocking.<\/li>\n\n<li>Keep indentations far enough from edges and from each other to avoid interaction.<\/li>\n\n<li>If your strip is thin, don\u2019t \u201csolve it\u201d by stacking layers\u2014control the method instead.<\/li><\/ul><h3 class=\"wp-block-heading\" id=\"8f83031e-2f4a-421a-9547-918d5adfa22d\">Interpret spread and actions<\/h3><p>Don\u2019t just look at the average. Look at the spread.<\/p><p>Interpretation checklist:<\/p><ul><li>If head\/mid\/tail shift together, suspect\u00a0<strong>batch heat treatment<\/strong>\u00a0O\u00a0<strong>process-window drift<\/strong>.<\/li>\n\n<li>If edges are consistently lower than center, suspect\u00a0<strong>decarburization<\/strong>\u00a0or edge conditioning effects.<\/li>\n\n<li>If one zone is off, isolate that zone in WIP routing (don\u2019t blend lots).<\/li><\/ul><p>Action checklist:<\/p><ul><li><strong>Accept<\/strong>: hardness meets PO targets and spread is within your internal control limit.<\/li>\n\n<li><strong>Hold \/ retest<\/strong>: hardness is borderline or spread suggests a localized issue.<\/li>\n\n<li><strong>Reject \/ disposition<\/strong>: hardness is out of spec, or spread indicates non-uniformity that will create FPY loss.<\/li><\/ul><h2 class=\"wp-block-heading\" id=\"bc36a373-97ee-43a4-bb09-12e4636030e6\">Decarburazione e uniformit\u00e0<\/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=\"Decarburazione e uniformit\u00e0\" 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\">Detect and measure per ASTM E1077<\/h3><p>If strip edges are soft, chip early, or don\u2019t hold a stable grind, decarburization is a prime suspect\u2014especially in thin sections where the surface zone is a larger fraction of the cross-section.<\/p><p>ASTM\u2019s method for estimating decarb depth is\u00a0<a href=\"https:\/\/store.astm.org\/e1077-14r21.html\" target=\"_blank\" rel=\"noreferrer noopener\"><em><strong>ASTM E1077\u00a0\u2014 Standard Test Methods for Estimating the Depth of Decarburization of Steel Specimens<\/strong><\/em><\/a>.<\/p><p>Checklist (what to request\/report):<\/p><ul><li>Sample location and orientation (edge vs center; head\/mid\/tail if relevant).<\/li>\n\n<li>Whether results are reported as\u00a0<strong>total<\/strong>\u00a0E\u00a0<strong>partial<\/strong>\u00a0decarburization 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\">SOP per la documentazione e la tracciabilit\u00e0<\/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\u00a0<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>Nota tecnica:<\/strong>\u00a0If 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\u00a0<a href=\"https:\/\/maxtormetal.com\/it\/prodotto\/industrial-blade-strip-steel-beveled-reels\/\" target=\"_blank\" rel=\"noreferrer noopener\"><em><strong>industrial blade strip steel in beveled reels<\/strong><\/em><\/a>\u00a0for form-factor and traceability documentation standards.<\/p><p>If your traceability review also involves coil length planning and changeover scheduling, see\u00a0<a href=\"https:\/\/maxtormetal.com\/it\/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>\u00a0for 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\u00a0<strong>disposition decision<\/strong>\u00a0(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.<\/li><\/ul><h2 class=\"wp-block-heading\" id=\"08dfec58-74d3-4076-8243-d1f37e0d37d1\">FAQs:<\/h2><h3 class=\"wp-block-heading\" id=\"c7243bb6-4c0f-4147-98bc-61e8de394f80\">D: Come posso leggere rapidamente un MTC dell'acciaio per utensili per lame per nastri?<\/h3><p>R: Inizia dall'intestazione: conferma il certificato EN 10204 3.1, il fornitore, il grado dell'acciaio e il numero di colata. Quindi, verifica che la tabella chimica corrisponda al tuo ordine d'acquisto\/specifica e che il numero di colata sia collegato all'etichetta del coil. Infine, convalida l'uniformit\u00e0 della durezza con una semplice mappatura (testa\/centro\/coda \u00d7 bordo\/centro\/bordo).<\/p><h3 class=\"wp-block-heading\" id=\"4161c422-50cf-4da0-8660-c1d693bcfcee\">D: Qual \u00e8 la differenza tra i certificati EN 10204 3.1 e 3.2?<\/h3><p>R: Un certificato 3.1 viene rilasciato dal produttore con i risultati dei test ed \u00e8 firmato da un rappresentante di ispezione autorizzato. Un certificato 3.2 aggiunge il coinvolgimento di un ente indipendente (terza parte o rappresentante dell'acquirente) in base ai requisiti contrattuali. Quando il rischio \u00e8 pi\u00f9 elevato o gli audit sono pi\u00f9 rigidi, il certificato 3.2 viene utilizzato pi\u00f9 di frequente.<\/p><h3 class=\"wp-block-heading\" id=\"9268e6bc-25a8-4074-bd9c-cfd59b2b6034\">D: Il PMI\/XRF pu\u00f2 verificare con precisione l'acciaio per utensili D2 o M2?<\/h3><p>R: Il PMI\/XRF \u00e8 utile per confermare la famiglia di leghe e molti elementi leganti, ma presenta limiti per il carbonio. Se l'accettazione dipende da comportamenti sensibili al carbonio (risposta alla durezza, usura), utilizzare spark-OES o ICP-OES in base alle proprie SOP.<\/p><h3 class=\"wp-block-heading\" id=\"3d4d2192-2f1a-4bad-a5d2-85ed11b09f6c\">D: Quanti punti di prova di durezza Rockwell sono necessari su un coil in nastro d'acciaio?<\/h3><p>R: Utilizzare una mappatura in grado di rilevare le variazioni sia in larghezza che in lunghezza: testa\/centro\/coda lungo il coil e bordo\/centro\/bordo attraverso la larghezza. Ci\u00f2 fornisce nove punti come minimo pratico per il controllo dell'uniformit\u00e0; aggiungere punti se la cronologia del processo mostra una dispersione localizzata.<\/p><h3 class=\"wp-block-heading\" id=\"4b7a1303-dc5f-44dd-8b44-599ff13b4bfe\">D: Cosa causa la variazione di durezza dal bordo al centro sulle lame per nastri?<\/h3><p>R: Le cause comuni includono differenze nelle condizioni superficiali, decarburazione vicino ai bordi e non uniformit\u00e0 di lavorazione. Il segnale tipico \u00e8 spesso \"bordi bassi, centro OK\". Se si presenta questo schema, aggiungere un controllo della decarburazione e rendere pi\u00f9 rigorosa la documentazione sulla localizzazione dei campionamenti.<\/p><h3 class=\"wp-block-heading\" id=\"d9fbfefd-e3f6-4fd0-8c33-bd4f2ad364da\">D: A cosa serve la norma ASTM E1077 nel QA dell'acciaio per utensili?<\/h3><p>R: La norma ASTM E1077 viene utilizzata per stimate la profondit\u00e0 di decarburazione nei campioni di acciaio. Nella pratica, supporta le decisioni di accettazione e le analisi delle cause radice quando la morbidezza superficiale compromette le prestazioni della lama, specialmente nei nastri sottili in cui la zona superficiale \u00e8 pi\u00f9 critica.<\/p><h3 class=\"wp-block-heading\" id=\"e14c86d0-f453-4386-99b6-8ac0de013969\">D: Cosa fare se la chimica del MTC \u00e8 conforme ma la prova di durezza non supera il controllo?<\/h3><p>R: Metti in fermo il lotto e verifica prima la validit\u00e0 del test (idoneit\u00e0 di scala e spessore, supporto, spaziatura e preparazione del campione). Se il test \u00e8 valido, gestiscilo come una non conformit\u00e0: preleva nuovi campioni con una catena di custodia documentata, confronta i dati con i requisiti del PO\/specifica e stabilisci la destinazione del lotto (accettazione con riserva, declassamento o reso\/scarto).<\/p><h3 class=\"wp-block-heading\" id=\"0db63fc9-715c-46ec-8de1-a7e98efe4c5d\">D: \u00c8 necessario eseguire una nuova verifica dopo la taglio longitudinale (slitting) o la rettifica?<\/h3><p>R: S\u00ec, se tali fasi modificano la catena di tracciabilit\u00e0 (divisione del lotto) o alterano la superficie di lavoro. Riconfermare almeno la tracciabilit\u00e0 (dal numero di colata al lotto interno) e la durezza\/condizione superficiale in base alla valutazione del rischio, in particolare dopo la rettifica o il trattamento termico.<\/p><h2 class=\"wp-block-heading\" id=\"2e0bcd01-f159-47c8-aa75-e58a951c2ea9\">Conclusione<\/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>Auditor capo ISO 9001<\/strong>, E&nbsp;<strong>ANT Livello 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\/it\/reading-tool-steel-mtc-strip-blades-qa-checklist\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\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\/it\/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=\"2026-08-02T13:39:45+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\":\"2026-08-02T13:39:45+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/\"},\"wordCount\":2693,\"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\":\"it-IT\"},{\"@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\":\"2026-08-02T13:39:45+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\":\"it-IT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"it-IT\",\"@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\":\"it-IT\"},{\"@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\":\"it-IT\",\"@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\/it\/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\":\"it-IT\",\"@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=\"Cina\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Lettura MTC dell'acciaio per utensili: Check-list QA per lame per nastri","description":"Leggere il MTC dell'acciaio per utensili per lame per nastri: verificare EN 10204 3.1, tracciabilit\u00e0 del numero di colata, fasce chimiche, mappa di durezza, decarburazione secondo 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\/it\/reading-tool-steel-mtc-strip-blades-qa-checklist\/","og_locale":"it_IT","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\/it\/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":"2026-08-02T13:39:45+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":"2026-08-02T13:39:45+00:00","mainEntityOfPage":{"@id":"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/"},"wordCount":2693,"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":"it-IT"},{"@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":"Lettura MTC dell'acciaio per utensili: Check-list QA per lame per nastri","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":"2026-08-02T13:39:45+00:00","description":"Leggere il MTC dell'acciaio per utensili per lame per nastri: verificare EN 10204 3.1, tracciabilit\u00e0 del numero di colata, fasce chimiche, mappa di durezza, decarburazione secondo ASTM E18\/E1077.","breadcrumb":{"@id":"https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/#breadcrumb"},"inLanguage":"it-IT","potentialAction":[{"@type":"ReadAction","target":["https:\/\/maxtormetal.com\/reading-tool-steel-mtc-strip-blades-qa-checklist\/"]}]},{"@type":"ImageObject","inLanguage":"it-IT","@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 | Produttore e fornitore di lame industriali personalizzate","description":"Fornitore di lame e coltelli meccanici per tutte le macchine prodotte in Cina.","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":"it-IT"},{"@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 (precedentemente nota come Metal Industrial) \u00e8 un&#039;azienda produttrice di lame industriali personalizzate con sede a Nanchino, in Cina. Fondata nel 2006 con il nome di Nanjing Metal Industrial CO., Limited, \u00e8 specializzata nella produzione di lame e coltelli per macchinari industriali e nella fornitura di servizi di riaffilatura per clienti in oltre 80 paesi in tutto il mondo.","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":"it-IT","@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":"Con oltre 13 anni di esperienza nella produzione di pale industriali, nella gestione della produzione e nell&#039;ottimizzazione dei processi, mi impegno a fornire un servizio di alto livello, che si tratti di soluzioni personalizzate o di supporto tecnico. Se hai bisogno di soluzioni meccaniche per pale e di un partner affidabile, sono la scelta ideale. Non esitare a contattarmi in qualsiasi momento: collaboriamo per portare la tua attivit\u00e0 a nuovi livelli.","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\/it\/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":"it-IT","@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":"Cina"},"_links":{"self":[{"href":"https:\/\/maxtormetal.com\/it\/wp-json\/wp\/v2\/posts\/7988"}],"collection":[{"href":"https:\/\/maxtormetal.com\/it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/maxtormetal.com\/it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/maxtormetal.com\/it\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/maxtormetal.com\/it\/wp-json\/wp\/v2\/comments?post=7988"}],"version-history":[{"count":1,"href":"https:\/\/maxtormetal.com\/it\/wp-json\/wp\/v2\/posts\/7988\/revisions"}],"predecessor-version":[{"id":7992,"href":"https:\/\/maxtormetal.com\/it\/wp-json\/wp\/v2\/posts\/7988\/revisions\/7992"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/maxtormetal.com\/it\/wp-json\/wp\/v2\/media\/7989"}],"wp:attachment":[{"href":"https:\/\/maxtormetal.com\/it\/wp-json\/wp\/v2\/media?parent=7988"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/maxtormetal.com\/it\/wp-json\/wp\/v2\/categories?post=7988"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/maxtormetal.com\/it\/wp-json\/wp\/v2\/tags?post=7988"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}