Armco High Strength No. 1 is a high-strength low-alloy steel designed to give excellent corrosion resistance coupled with superior mechanical properties. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and bend strength as well as fracture toughness and fatigue. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SA-115. Producer or source: Armco Inc., Eastern Steel Division.