What is a Mill Certificate?

A mill certificate can be a steel industry document that is used to certify the manuafacturing standards of the products produced by the mill. It can specify the following:

A recognized Standard specification number such as an ASTM or AISI number (Ex ASTM A106. The ASTM is the American Society for Testing and Materials. This identifies the type of product (sheet, plate, tube, bar, etc.) and the set engineering standards to which it is produced.

An analysis of the elements (%) that make up the content of the mill product. Ie. carbon, nickel, titanium.

Brief description of the goods such as galvanized carbon steel sheet, welded tube, seamless pipe, zinc coated, hot rolled or cold rolled plate, etc.