This Standard specifies the dimensions, shape, mass, tolerances, technical requirements, test methods,inspection requirements, packaging, marking and inspection document for alloy structure steels of hot rolling and forging.
This Standard applies to the alloy structure steel bars with the diameter or thickness no more than 250 mm. Upon the agreement between the manufacturer and purchaser,the alloy structure steel bars with the diameter or thickness more than 250 mm may also be supplied.
