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.CARPENTER No. 5 BQ is a balanced version of AISI Type 416 stainless steel and it is capable of developing a minimum hardness of Rockwell C 40 when bright hardened. Despite its high hardness, it is nearly as machinable as Type 416. Its uses are widespread.