GB/T 3180-1982

This standard specifies the technical requirements, test methods, inspection rules, and marking for medium manganese wear-resistant spheroidal iron castings. It is applied in the production of cast components that require high wear resistance and moderate toughness, such as grinding balls, liners, and hammers used in mining, cement, and power plant coal-grinding equipment. The standard ensures consistent material performance for parts subjected to abrasive wear in dry or wet grinding environments.