USS Stainless-W is of the ferritic 18-8 type stainless steel which responds to precipitation-hardening heat treatment for increased strength and hardness. It is magnetic in both the solution annealed or precipitation hardened condition. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness, creep, and fatigue. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-1. Producer or source: Carnegie-Illinois Steel Corporation.