Analysis of industrial application of G8Cr15 bearing steel
YOU Lei-lei1,2, WANG Hong-wei1, HOU Jun1,2, LI Xue-mei3, YANG Zhi-nan2,3
1. Technical Center, Luoyang LYC Bearing Co. , Ltd. ,Luoyang 471003, Henan, China; 2. State Key Laboratory of Aviation Precision Bearings, Luoyang 471003, Henan, China; 3. National Engineering Research Center for Equipment and Technology of Cold Strip Rolling, Yanshan University, Qinhuangdao 066004, Hebei, China
Abstract：Reducing the disadvantageous factors such as network and banded carbides in high carbon chromium bearing steel is beneficial to improve the comprehensive properties of bearing steel. G8cr15 bearing steel is a type of bearing steel newly-included in the national standard, and the performances of GCr15 and G8Cr15 are compared through a series of experiments. The results show that as compared with GCr15 bearing steel, G8Cr15 bearing steel shows very low ability of forming network carbide and ribbon carbide, and it also exhibits higher hardenability, good impact properties and wear resistance. Finally, it is verified by industrial production that G8Cr15 can replace GCr15 to produce bearing parts, and it is unlikely to produce network carbide.
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2020, Vol. 30 
