
www.astm.org
American
Society for Testing and Materials
An Organization that develops standards and specifications for
castings and other materials

www.asme.org
The
American Society of Mechanical Engineers
An organization promoting the practice of mechanical engineering
throughout the world. Specifications for cast materials, welding
electrodes, non-destructive testing etc.

www.matls.com
The
Online Materials Information Resource
A
database containing thousands of materials and their applicable
sepcifications. A great tool!