1C 熱處理 數據
HRB
1.原狀態 94.8 94.1 93.9 93.8 93.8
2.爐冷 82.8 82.5 84.6 83.6 83.7
3.空冷 93.9 94.7 95.0 95.1 94.5
HRC
4.油淬火 40.5 42.2 39.8 39.7 44.0
5.水淬火 63.5 64.5 64.4 63.2 63.5
6.水淬火 64.0 63.9 64.9 64.6 61.5
低溫回火 60.4 62.7 62.9 63.0 63.5
7.水淬火 62.5 63.8 62.4 63.4 63.2
高溫回火 42.6 42.9 42.5 42.2 43.0
8.750水淬火 60.5 62.3 65.0 64.9 62.4
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