UNITEMP 901, a nickel/iron/chromium base austenitic, precipitation-hardenable alloy has high tensile, stress-rupture and creep strengths in the range 1000 to 1400 F. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness, creep, and fatigue. It also includes information on low and high temperature performance, and corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Ni-177. Producer or source: Cytemp Cyclops. Originally published August 1972, revised June 1991.