Carpenter Custom 465 stainless steel is an age-hardenable martensitic alloy with less sensitivity to process parameters than other similar alloys. It develops high strength along with fracture toughness and resistance to stress-corrosion cracking. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fatigue. It also includes information on corrosion resistance as well as forming and heat treating. Filing Code: SS-716. Producer or source: Carpenter.