摘要
本文主要叙述GB/T 1172 - 1999“黑色金属硬度及强度换算值”标准和原 1974年标准的不同 。
Difference between GB/T 1172-1999 standard on conversion of hardness to strenth for ferrous matal and standard worked out in the year 1974 was mainly discussed and tables in the standard were slightly changed in this paper.
出处
《热处理》
CAS
2003年第1期49-52,共4页
Heat Treatment
