GB/T 33522-2017: Translated English of Chinese Standard. (GBT 33522-2017, GB/T33522-2017, GBT33522-2017): Carburizing Bearing Steel Forgings - Technical Specifications
https://www.chinesestandard.net, 2 juin 2018 - 14 pages
This Standard specifies the ordering requirements, manufacturing process, technical requirements, inspection rules and test methods, acceptance and quality certificate, mark and package of carburizing bearing steel forgings. This Standard is applicable to the ordering, manufacturing and inspection of high quality carburizing bearing steel forgings used for manufacturing rolling bearing rings and rolling elements.
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Inspection Rules and Test Methods
Acceptance and Quality Certificate
Appendix A Informative Supplementary Technical Requirements
Acceptance and Quality acid aqueous solution agreed Allowable Deviation Allowances and Tolerances bearing steel forgings calcium carburizing bearing steel Chemical Compositions Mass Coarse Coarse Coarse Compositions Mass Fraction contract number corrosion deoxidation documents drawing number finished forgings finished products forging ratio Forgings on Hammer Grain Grain size Hardness Test Heat treatment hydrochloric acid aqueous identification number implemented inclusion rating system inspection and non-metallic inspection rules JB/T ladle refining Machining Allowances Macrostructure and Defect Macrostructure inspection Magnetic powder method Mark and Package material grade non-metallic inclusion rating number of forgings Open Die Forgings Ordering contract permissible deviation provisions of GB/T provisions of Table purchaser can designate quality certificate rules and test sample preparation method sampling quantities shrinkage smelting analysis smelting furnace number Smelting method Standard Diagrams steel ingot Steel Open Steels GB/T stretching forging Supplementary Technical Requirements supplier shall provide tempered or annealed Test Method Tolerances for Steel Type-D Ultrasonic test