This standard specifies the tolerances, machining allowances and application principles of steel die forgings (hereinafter referred to as forgings). This standard applies to structural steel forgings produced by forging equipment such as die forging hammers, hot die forging presses, screw presses and flat forging machines. Forgings of other steel types can also be used as a reference. This standard applies to forgings with a mass less than or equal to 250 k9 and a length (maximum dimension) less than or equal to 2 500 mm.
GB/T 12362-2003 history
2016GB/T 12362-2016 Steel die forgings—Tolerance and machining allowance
2003GB/T 12362-2003 Tolerances and machining--Allowances of steel die forging