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A 3.1 certificate relates to an inspection certificate that is given for products that have been tested in accordance with DIN-EN-10204 (see the links below). For specific information on what information needs to be in the certificate you will need to refer to the standard (second link).
In this regard, what is the difference between 3.1 and 3.2 material certification?
Type 3.1, Statement of compliance with the order, with indication of results of specific inspection. Authorized inspection representative by the manufacturer, but is independent of the manufacturing department. Type 3.2, Statement of compliance with the order, with indication of results of specific inspection.
- #1 – Material Heat Number.
- #2 – Material Grade (not pictured)
- #3 – Product Specifications Met.
- #4 – Material Dimensions.
- #5 – Mechanical Properties.
- #6 – Chemical Analysis.
- #7 – Heat Treatment (not pictured)
- #?8 – Certified Mill Signature.
Consequently, what is en10204?
Inspection certificate 3.1 “type 3.1” – is simply a document issued by the manufacturer in which he declares that the products supplied are in compliance with the requirements of the order and in which he supplies test results.
Material Certifications – Certifies a material's chemical and, in some cases, physical properties and states a product made of metal is in compliance with specific standards of international standards organizations such as ANSI, ASME, etc. Material Certification Included – No Action Required at Time of Purchase.