An increasing requirement in many industries, is to provide proof that materials meet defined chemical and mechanical properties, with the aim of independently verifying material conformity across the supply chain, with traceability all the way back to the original steelmaker. This has led to certification by the original manufacturers authorised independent inspection representatives, under the standard EN 10204:2004, type 3.1 certification.




All our grades are available with full mill traceable certification. Certificates of conformity can be supplied on request. Please request any certifications as you place your order.

There are varying standards for different regions of the world – please see our standards comparison chart for further information:

Stainless Steel Standards Comparisons Chart


All bright ground materials are supplied to ISO tolerances for shafts (ISO286-2). Please request the dimensional tolerance requirements within the purchase order / enquiry.

Tolerances for Shafts Chart