CARPENTER STAINLESS No. 2 is a high carbon heat-treatable chromium stainless steel equivalent to AISI Type 420; while No. 2-FM is the free-machining modification equivalent to AISI Type 420-F. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties 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: SS-47. Producer or source: Carpenter.