CROLOY 299 is a chromium-manganese austenitic steel which can be cold worked to high levels of strength and hardness without becoming magnetic. It exhibits permeability of less than 1.01 Mu as measured with a Severn tester. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness and creep. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-290. Producer or source: Babcock & Wilcox Company.