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.JESSOP JS15Cr-5Ni is a martensitic, precipitation-hardening, chromium-nickel-copper stainless steel. It offers high strength and hardness in combination with good resistance to corrosion. Corrosion resistance is inferior to that of the austenitic stainless steels developed for corrosion-resistant applications, probably inferior even to that of the higher chromium JS17Cr-4Ni, but is better than for most high-strength grades. The composition balance gives high strength and the copper enables this grade to be age hardened to still higher strengths by low-temperature heat treatment with little distortion. Typical applications include aircraft components and a variety of fabricated parts for use in corrosive, high-pressure systems.