GSN is an oil-hardening, high-carbon high-chromium die steel developed for high wear and abrasion resistance. It is outstanding among non-deforming oil-hardening steels, holding size almost as well as high-carbon high-chromium air-hardening die steels. It is used on specialized applications such as draw dies, forming rolls, powder-metal tooling and lamination dies. This datasheet provides information on composition, physical properties, hardness, and elasticity as well as fracture toughness. It also includes information on heat treating and machining. Filing Code: TS-454. Producer or source: Latrobe Steel Company.