publius
Well-known member
Here is a comprehensive procedure to identify metals and alloys: This is what I used while I was in the US Navy to verify material types. It is an excellent guide for scrap sorting and as a way to determine how to treat some of the base metals that are coated or contain PMs. See: http://www.everyspec.com/DoD/DoD-HDBK/DOD-HDBK-249A_16505/