THYROPLAST 2738 is an AISI P20 modified tool steel, electric arc melted and vacuum degassed ideally suited for large intricate dies and plastic molds. It has high hardenability with high abrasion resistance and impact strength. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on heat treating, machining, and joining. Filing Code: TS-518. Producer or source: Thyssen Specialty Steels Inc.