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| Combing of current standard of high carbon chromium bearing steel and comparison of GCr15 standards |
| WANG Yanfeng1，XIE Bo1,LV Qing2,ZHANG Weihao2,FENG Yan2,BAO Nan2 |
| 1. China National Institute of Standardization, Beijing 100191， China；
2. NCS Testing Technology Co., Ltd., Beijing 100081， China |
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| Guide |
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Abstract The current standards for high carbon chromium bearing steel were combed. The standard number, name, category, application scope and standard system category were listed. Meanwhile, the internal control standard of high carbon chromium bearing steel (GCr15 and GCr15PGI) with similar grade and composition was selected for the comparison with GB/T 18254-2016 and ISO 683-17 taking a steel enterprise as an example. It explained the requirements of different standards on carbides, inclusion, and chemical composition of GCr15 and other bearing steel with similar composition. It was found that the requirements of GB/T 18254-2016 were stricter than ISO 683-17, and internal control standard of enterprise had further requirements based on GB/T 18254-2016.
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Received: 14 December 2021
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2022, Vol. 40 
