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What is a Mill Test Certificate (EN 10204 2.1, 3.1, 3.2)?

A Mill Test Certificate (MTC), or Mill Test Report (MTR), is issued by a manufacturer to certify the chemical and mechanical features of a product and its compliance to the applicable norms and technical specifications. Typically, Mill Test Certificates conform to the EN 10204 standard and are related to steel products.

MILL TEST CERTIFICATE

A mill test certificate to EN 10204 shows, generally, the following information:

  • Type of certificate and standard (example EN 10204 3.1 or EN 10204 3.2)
  • Manufacturer name
  • Product name and dimensions
  • Quantity covered by the certificate (example: tons, with heat numbers)
  • Heat numbers and batch number (physically shown on the product as well)
  • Final test result
  • Dimensional measurements, to check compliance with allowed tolerances (example, for steel pipes: diameter, wall thickness, length, straightness)
  • Material grade and applicable specification, including results of chemical and mechanical tests
  • Results of additional tests, like hydrostatic, ultrasounds (UT), hardness, impact test, magnetic particles, metal graphic result etc.
  • Addenda useful to appraise the full features of the product

pipe mill test certificate 3.1
Sample mill test certificate (Tenaris steel pipes).

TYPES OF MILL TEST CERTIFICATE (EN 10204 2.1, 2.2, 3.1, 3.2)

Mill Test Certificate denomination in…
MTC Type
EN 10204
EnglishGermanFrenchScopeMTC to be validated by…
MTC Type 2.1Declaration of compliance with the orderWerk-
Bescheinigung
Attestation de conformité á la CommandeStatement of compliance with the orderThe manufacturer
MTC Type 2.2Test reportWerkzeugnisseRelvé de contrôleStatement of compliance with the order by the manufacturer based on non-specific inspections (tests) by the manufacturer.The manufacturer
MTC Type 3.1Inspection certificate 3.1Abnahmeprüf-
Zeugnisse 3.1
Certificat de réception 3.1Statement of compliance with the order by the manufacturer with results of a specific inspectionThe manufacturer`s authorized inspection representative, independent by the manufacturing department
MTC Type 3.2Inspection certificate 3.2Abnahmeprüf-
zeugnisse 3.2
Certificat de réception 3.2Statement of compliance with the order with an indication of results of a specific inspection
  • The manufacturer`s authorized inspection representative independent by the manufacturing department
  • Either the purchaser`s authorized inspection representative or a third-party inspector

EN 1024 3.1 MILL TEST CERTIFICATE

Certificate typeTitleSummary of EN10204 requirementsNotes
3.1Inspection certificateStatement of compliance with the order by the manufacturer with results of specific inspectionReplaces 3.1B. Common certificate type issued for ‘batch tested’ material. Cert. issued and signed by the manufacturer’s representative, who must be independent of the manufacturing department. Eg Inspection department or test house manager/supervisor.
3.1AInspection certificate 3.1AWith a mention of test results from specific inspection and testingBatch test results. Cert. issued by independent inspector required by releasing authority (eg TUV for German pressure vessels). Replaced by 3.2 in 2004
3.1BInspection certificate 3.1BWith a mention of test results from specific inspection and testingBatch test results. Cert. issued and signed by the manufacturer’s representative. Replaced by 3.1 in 2004
3.1CInspection certificate 3.1CWith a mention of test results from specific inspection and testingBatch test results. Cert. issued by an independent inspector appointed by a customer (eg Lloyds). Replaced by 3.2 in 2004

 

Comments

This post currently has 12 responses

  • can the Owner of an electrode manufacturing company certify batch test certificates when tests are carried out to 3.1 of EN 10204?

    • Actually i don’t know they can or not but i require 3.1 certificates of the electrodes and they send me. For any metallic materials 3.1 certificates needs to show heat number, required test results, applicable standards etc. In this case for electrodes, they can send you raw material test results for each batch (heat), but if you need after welding condition they need to make sample weld and test it. it is relative what you need it for. If you will use this certificates for a project you demand a sample certificate (3.1 or 2.1 according to your customer specs) and get approval from your customer beforehand. but i know electrode company can give any type of certificate you need.

  • Hello members,, I am working in a erw steel tube making company as a QC manager, Now when I make a mill test certificate at the enclosure I use to mention that the certificate is as per EN-10204/3.1B standard , as the said standard is referring our process, so mentioning the said standard directly in mtc is ok or shall i have to ask an organisation to have this certificate first,then only i can put EN-10204/3.1 B standard in my certificate,
    Secondly I want to know,we are receiving our raw material, supplier certificate is inspection certificate/sometime mill test certificate,after receiving this raw material we are manufacturing steel tubes,sheets etc,so while making MTc I am writing the certificate is mill test certificate,is it okay or it should be material test certificate?

  • Hi, could you please let me know if this certificate as well could be issued by equipment manufactures? or it’s only for metal parts production?

    Thanks

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