{"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\/de\/reading-tool-steel-mtc-strip-blades-qa-checklist\/","title":{"rendered":"Werkzeugstahl-Werkszeugnis (MTC) f\u00fcr Bandstahlmesser richtig lesen: Eine praktische QS-Checkliste f\u00fcr Chemie, H\u00e4rte und R\u00fcckverfolgbarkeit"},"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=\"Werkzeugstahl-Werkszeugnis (MTC) f\u00fcr Bandstahlmesser richtig lesen: Eine praktische QS-Checkliste f\u00fcr Chemie, H\u00e4rte und R\u00fcckverfolgbarkeit\" 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>Schnellantwort: Um ein Werkzeugstahl-MTC f\u00fcr Bandstahlmesser zu lesen, beginnen Sie im Kopfbereich: Best\u00e4tigen Sie den Zertifikatstyp EN 10204 3.1, die Lieferantenidentit\u00e4t, die Stahlg\u00fcte und die Schmelzennummer. Gleichen Sie dann die Chemiefeld-Tabelle mit Ihrer Bestellung oder Spezifikation ab (unter Verwendung von ASTM A681 oder ISO 4957 als Referenzstandard). \u00dcberpr\u00fcfen Sie die H\u00e4rtegleichm\u00e4\u00dfigkeit mit einem 9-Punkte-H\u00e4rteprofil (Kopf\/Mitte\/Fu\u00df \u00d7 Kante\/Mitte\/Kante gem\u00e4\u00df ASTM E18) und erg\u00e4nzen Sie eine Pr\u00fcfung auf Entkohlung (ASTM E1077), wenn die Schneidkantenleistung kritisch ist. Die Schmelzennummer muss das MTC, das Coil-Etikett und Ihre internen Chargenaufzeichnungen verbinden, um eine vollst\u00e4ndige R\u00fcckverfolgbarkeitskette zu bilden.<\/p><p>In der Fertigung von Bandstahlmessern ist ein Werkzeugstahl-MTC nur dann n\u00fctzlich, wenn es Ihnen hilft, eine schnelle und fundierte Wareneingangsentscheidung zu treffen \u2013 und wenn Sie die R\u00fcckverfolgbarkeit auch nach dem L\u00e4ngsteilen, Schleifen und Umwandeln des Coils in interne Chargen weiterhin nachweisen k\u00f6nnen. Diese praktische Checkliste wurde vom QS- und Metallurgie-Engineering-Team von Maxtor Metal erstellt. Sie basiert auf \u00fcber 15 Jahren spezialisierter Erfahrung in der Herstellung von Industriemessern, der kundenorientierten Stahlauswahl und strengen Qualit\u00e4tskontrollprotokollen zur Abstimmung von Dokumentation, Kennzeichnung und Verifizierung zwischen Lieferant und K\u00e4ufer.<\/p><ul><li><strong>Zweck:<\/strong>\u00a0enable fast, reliable acceptance decisions for strip blades<\/li>\n\n<li><strong>Umfang:<\/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\">Grundlagen von Werkszeugnissen (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\">So pr\u00fcfen Sie die chemische Zusammensetzung im Werkzeugstahl-MTC \u2013 und wann eine PMI-Analyse nicht ausreicht<\/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=\"So pr\u00fcfen Sie die chemische Zusammensetzung im Werkzeugstahl-MTC \u2013 und wann eine PMI-Analyse nicht ausreicht\" 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>\u00a0oder\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>Grad<\/th><th>Kohlenstoff (C)<\/th><th>Chrom (Cr)<\/th><th>Vanadium (V)<\/th><th>Molybd\u00e4n (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\/de\/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\">Warum H\u00e4rtegleichm\u00e4\u00dfigkeit wichtiger ist als der Mittelwert \u2013 und wie man ein H\u00e4rteprofil auf dem Band erstellt<\/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>Grad<\/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>\u00a0oder\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\">Entkohlung und Gleichm\u00e4\u00dfigkeit<\/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=\"Entkohlung und Gleichm\u00e4\u00dfigkeit\" 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>\u00a0und\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 f\u00fcr Dokumentation und R\u00fcckverfolgbarkeit<\/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>Technischer Hinweis:<\/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\/de\/produkt\/industrial-blade-strip-steel-beveled-reels\/\" target=\"_blank\" rel=\"noreferrer noopener\"><em><strong>Industrieller Klingenbandstahl in abgeschr\u00e4gten Spulen<\/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\/de\/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\">F: Wie lese ich ein Werkzeugstahl-MTC f\u00fcr Bandstahlmesser schnell?<\/h3><p>A: Beginnen Sie im Kopfbereich: Best\u00e4tigen Sie EN 10204 3.1, Lieferant, Stahlg\u00fcte und Schmelzennummer. \u00dcberpr\u00fcfen Sie dann, ob die Chemie-Tabelle mit Ihrer Bestellung\/Spezifikation \u00fcbereinstimmt und die Schmelzennummer mit dem Coil-Etikett verkn\u00fcpft ist. Validieren Sie schlie\u00dflich die H\u00e4rtegleichm\u00e4\u00dfigkeit mit einem einfachen H\u00e4rteprofil (Kopf\/Mitte\/Fu\u00df \u00d7 Kante\/Mitte\/Kante).<\/p><h3 class=\"wp-block-heading\" id=\"4161c422-50cf-4da0-8660-c1d693bcfcee\">F: Was ist der Unterschied zwischen den Abnahmepr\u00fcfzeugnissen EN 10204 3.1 und 3.2?<\/h3><p>A: Ein 3.1-Zertifikat wird vom Hersteller mit den Pr\u00fcfergebnissen ausgestellt und von einem sachkundigen, vom Herstellungswerk unabh\u00e4ngigen Abnahmebeauftragten unterzeichnet. Ein 3.2-Zertifikat erfordert zus\u00e4tzlich die Einbindung einer unabh\u00e4ngigen Instanz (eines Dritten\/T\u00dcV\/SGS oder des Bestellerbeauftragten) gem\u00e4\u00df den vertraglichen Anforderungen. Bei h\u00f6heren Risiken oder strengeren Audit-Anforderungen kommt das 3.2-Zertifikat h\u00e4ufiger zum Einsatz.<\/p><h3 class=\"wp-block-heading\" id=\"9268e6bc-25a8-4074-bd9c-cfd59b2b6034\">F: Kann eine PMI\/RFA-Analyse D2- oder M2-Werkzeugstahl pr\u00e4zise verifizieren?<\/h3><p>A: Eine PMI\/RFA-Analyse (R\u00f6ntgenfluoreszenzanalyse) ist n\u00fctzlich zur Best\u00e4tigung der Legierungsfamilie und vieler Legierungselemente, st\u00f6\u00dft jedoch beim Kohlenstoff an ihre Grenzen. Wenn Ihre Wareneingangsentscheidung von kohlenstoffempfindlichen Eigenschaften abh\u00e4ngt (H\u00e4rteverhalten, Verschlei\u00dffestigkeit), nutzen Sie Spark-OES oder ICP-OES gem\u00e4\u00df Ihrer SOP.<\/p><h3 class=\"wp-block-heading\" id=\"3d4d2192-2f1a-4bad-a5d2-85ed11b09f6c\">F: Wie viele Rockwell-H\u00e4rtepr\u00fcfpunkte ben\u00f6tige ich bei einem Stahlband-Coil?<\/h3><p>A: Nutzen Sie ein H\u00e4rteprofil, das Abweichungen sowohl in der Breite als auch in der L\u00e4nge erfasst: Kopf\/Mitte\/Fu\u00df entlang des Coils sowie Kante\/Mitte\/Kante \u00fcber die Breite. Dies ergibt neun Punkte als praktisches Minimum f\u00fcr die Gleichm\u00e4\u00dfigkeitspr\u00fcfung; erg\u00e4nzen Sie weitere Pr\u00fcfpunkte, wenn Ihre Prozesshistorie lokale Streuungen aufweist.<\/p><h3 class=\"wp-block-heading\" id=\"4b7a1303-dc5f-44dd-8b44-599ff13b4bfe\">F: Was verursacht H\u00e4rteabweichungen von der Kante zur Mitte bei Bandstahlmessern?<\/h3><p>A: Zu den h\u00e4ufigen Ursachen geh\u00f6ren Unterschiede im Oberfl\u00e4chenzustand, Entkohlung in Kanten N\u00e4he sowie Unregelm\u00e4\u00dfigkeiten im Verarbeitungsprozess. Das typische Symptom lautet oft: \u201eKanten zu weich, Mitte OK\u201c. Wenn dieses Muster auftritt, erg\u00e4nzen Sie eine Pr\u00fcfpflicht auf Entkohlung und versch\u00e4rfen Sie die Dokumentation der Probenahmeorte.<\/p><h3 class=\"wp-block-heading\" id=\"d9fbfefd-e3f6-4fd0-8c33-bd4f2ad364da\">F: Wof\u00fcr wird ASTM E1077 in der Qualit\u00e4tssicherung (QS) von Werkzeugstahl verwendet?<\/h3><p>A: Die Norm ASTM E1077 dient zur Bestimmung der Entkohlungstiefe bei Stahlproben. In der Praxis unterst\u00fctzt sie Wareneingangsentscheidungen und Fehlerursachenanalysen (Root-Cause-Analysen), wenn eine zu weiche Oberfl\u00e4che die Messerleistung beeintr\u00e4chtigt \u2013 insbesondere bei d\u00fcnnem Bandstahl, wo die Oberfl\u00e4chenzone eine entscheidende Rolle spielt.<\/p><h3 class=\"wp-block-heading\" id=\"e14c86d0-f453-4386-99b6-8ac0de013969\">F: Was sollte ich tun, wenn die MTC-Chemie stimmt, aber die H\u00e4rtepr\u00fcfung fehlschl\u00e4gt?<\/h3><p>A: Sperren Sie die Charge und pr\u00fcfen Sie zuerst die G\u00fcltigkeit der Messung (Eignung von Skala und Materialdicke, Auflage, Pr\u00fcfpunktabstand, Probenpr\u00e4paration). Ist die Messung valide, behandeln Sie den Fall als Abweichung\/Nichtkonformit\u00e4t: F\u00fchren Sie eine Nachprobenahme mit l\u00fcckenloser Nachweiskette (Chain-of-Custody) durch, gleicht die Ergebnisse mit den Bestell-\/Spezifikationsanforderungen ab und entscheiden Sie \u00fcber den Chargenverbleib (Freigabe mit Einschr\u00e4nkung, Abstufung\/Umutzung oder R\u00fcckweisung).<\/p><h3 class=\"wp-block-heading\" id=\"0db63fc9-715c-46ec-8de1-a7e98efe4c5d\">F: Muss ich nach dem L\u00e4ngsteilen (Slitting) oder Schleifen eine Nachpr\u00fcfung\/Re-Verifizierung durchf\u00fchren?<\/h3><p>A: Ja, sofern diese Prozessschritte die R\u00fcckverfolgbarkeitskette \u00e4ndern (Chargentrennung) oder die Arbeitsoberfl\u00e4che ver\u00e4ndern. \u00dcberpr\u00fcfen Sie risikobasiert mindestens die R\u00fcckverfolgbarkeit (von der Schmelzennummer zur internen Chargennummer) sowie die H\u00e4rte und den Oberfl\u00e4chenzustand \u2013 insbesondere nach dem Schleifen oder der W\u00e4rmebehandlung.<\/p><h2 class=\"wp-block-heading\" id=\"2e0bcd01-f159-47c8-aa75-e58a951c2ea9\">Fazit<\/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>ISO 9001 Lead Auditor<\/strong>, Und&nbsp;<strong>ASNT Level 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\/de\/reading-tool-steel-mtc-strip-blades-qa-checklist\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\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\/de\/reading-tool-steel-mtc-strip-blades-qa-checklist\/\" \/>\n<meta property=\"og:site_name\" content=\"Maxtor Metal | Custom Industrial Blade Manufacturer &amp; 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