Comparison and analysis of major technical changes in GB/T 230.1-2018
WU Wei1,2, GUO Yuehua1, YU Ni1,3
1. State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, PanGang Group Research Institute Co., Ltd., Panzhihua 617000, China; 2. Sichuan Pan Yan Inspection Technology Co., Ltd., Panzhihua 617000, China; 3. Chengdu Institute of Advanced Metallic Material Technology and Industary Co.,Ltd., Chengdu 610306,China
Abstract：By comparing and analyzing the new and old versions (2009 version and 2018 version) of the national standard GB/T 230.1 for Rockwell hardness test of metal materials, the main technical changes of the 2018 version of the national standard are obtained. Compared with the old version of the standard, the 2018 version of the national standard re described the test principle, modified the scope of application of the common Rockwell hardness scale, modified the holding time of the initial test force and the main test force, and refined the daily inspection procedures. The comparison and analysis between the new and old versions of standards can help testers understand and apply the new version of the national standard for Rockwell hardness test, and improve the effectiveness of the test results.
2023, Vol. 41 
