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.Allvac Ti-17 is a high-strength deep-hardening alloy. The alloy is alpha-beta, but beta-rich, and can be worked in both the beta and alpha-beta region. The alloy is commonly referred to as grade 17 in specifications.