Kubota Alloy CH-20 (ASTM A743) is an iron-chromium-nickel alloy that has other variations with lower carbon and addition of molybdenum. The nearest wrought equivalent is type 309 stainless. This datasheet provides information on composition, physical properties, hardness, and tensile properties as well as fracture toughness. It also includes information on casting and joining. Filing Code: SS-1085. Producer or source: Kubota Metal Corporation, Fahramet Division.