This standard specifies the classification, technical requirements, test methods, inspection rules, marking, quality certificate, packaging and transportation of steel die forgings (hereinafter referred to as "forgings"). This standard applies to structural steel die forgings produced by die forging hammers, hot die forging presses, screw presses, flat forging machines and other forging equipment. Forgings of other steel types can also be used as a reference. This standard is used as the basis for the product design department to determine the technical requirements of forgings and to sign a technical agreement between the supplier and the buyer, and can also be used as the basis for the acceptance of forgings.
GB/T 12361-2016 Referenced Document
GB/T 12362 Steel die forgings—Tolerance and machining allowance
GB/T 12363 Classification of forging functions*， 2021-05-21 Update
GB/T 224 Determination of the depth of decarburization of steels*， 2019-06-04 Update
GB/T 226 Test method for macrostructure and defect of steel by etching
GB/T 228.1 Metallic materials—Tensile testing—Part 1: Method of test at room temperature*， 2021-12-31 Update
GB/T 229 Metallic materials—Charpy pendulum impact test method*， 2020-09-29 Update
GB/T 230 Metallic materials--Rockwell hardness test
GB/T 231 Metallic materials--Brinell hardness test
GB/T 2828 Batch-by-batch inspection counting sampling procedure and sampling table (applicable to continuous batch inspection)
GB/T 2829 Sampling procedures and tables for periodic inspection by attributes (Apply to inspection of process stability)