This standard is a revision of JB 3593-84 "Powder metallurgy iron-based structural materials in heat treatment state". The technical content has changed during the revision. This standard specifies the chemical composition, physical and mechanical properties and inspection methods of powder metallurgy iron-based structural materials in the heat treatment state. This standard applies to sintered carbon steel, sintered copper steel, and sintered copper-molybdenum steel specified in GB/T 14667.1-1993 "Powder metallurgy iron-based structural materials Part 1: Sintered iron, sintered carbon steel, sintered copper steel, sintered copper-molybdenum steel" Material selection in heat treatment state.