View Sample Alloy Digest Data Sheet (PDF)Since 1952, Alloy Digest has been the leading reference for materials property data on metals and alloys used throughout the world. Featuring graphs, charts and tables, these sheets give facts and figures on composition or characterization, physical and mechanical properties, heat treatment, and machinability.ULTEM 1000 and 1010 are unreinforced grades of polytherimides which combine superior properties and processability. They possess good heat deflection characteristics and excellent flame resistance. They are available in natural transparent amber as well as opaque colors.