How to Read an EN 10204 3.1 Mill Test Certificate

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Every nickel alloy shipment from Tailan Metal carries an EN 10204 3.1 mill test certificate (MTC). Here is how to read one in two minutes.

The Key Blocks

  1. Heat number – the melt identity; every plate is traceable back to it. Match it against the marking on the material.
  2. Product form and dimensions – check form (sheet/plate), thickness, width, length against your order.
  3. Chemical composition – ladle analysis per element; compare against the ASTM ranges (e.g. Ni ≥58%, Cr 20–23% for B443 UNS N06625).
  4. Mechanical results – tensile strength, yield strength and elongation must meet the standard minimums for the supplied condition.
  5. Condition and heat treatment – e.g. annealed; for grades like 718 the aging cycle should be stated.

Red Flags

  • Heat number on the certificate that does not match the plate marking
  • Composition values sitting exactly on standard limits across many elements (possible copy-paste)
  • Missing condition statement

Independent Verification

We welcome third-party inspection (SGS, TUV, BV) and can arrange PMI retesting before shipment — a genuine certificate always survives verification.

Tailan Metal supplies nickel alloy sheet and plate in Inconel, Incoloy, Monel, Hastelloy and super-austenitic grades. For a quotation contact sales@tailanmetal.com or WhatsApp +86-18621377760.

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