DC53 can be hardened up to 63 HRC without losing toughness or becoming brittle. It is a long-lasting steel that reduces cracking and chipping and often replaces D2. This datasheet provides information on composition, physical properties, hardness, elasticity, and shear strength as well as fracture toughness. It also includes information on high temperature performance as well as heat treating. Filing Code: TS-599. Producer or source: International Mold Steel Inc., Daido Steel Company Ltd.