MST 7A1-4Mo is a bar forging alloy capable of being heat treated to high strength levels. It possesses excellent creep strength and can be used at temperatures up to 800 F for long times or 1300 F for short times. This datasheet provides information on composition, physical properties, elasticity, tensile properties, and shear strength as well as fracture toughness, creep, and fatigue. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Ti-31. Producer or source: Reactive Metals Corporation.