What Is A Mill Test Certificate Là Gì ? Chứng Chỉ Co Cq Là Gì? vuidulich.vn

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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.

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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 nameProduct name and dimensionsQuantity covered by the certificate (example: tons, with heat numbers)Heat numbers and batch number (physically shown on the product as well)Final test resultDimensional 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 testsResults 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* Sample mill test certificate (Tenaris steel pipes).

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

Mill Test Certificate denomination in…
MTC Type EN 10204EnglishGermanFrenchScopeMTC to be validated by…
MTC Type 2.1Declaration of compliance with the orderWerk- BescheinigungAttestation 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 3.1Certificat 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 3.2Certificat de réception 3.2Statement of compliance with the order with an indication of results of a specific inspectionThe manufacturer`s authorized inspection representative independent by the manufacturing departmentEither the purchaser`s authorized inspection representative or a third-party inspector
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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
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