[機工] 2B 熱處理數據
HRB 平均
1 93.4 93.5 93.2 93.5 94.6 93.46
2 88 90 91.5 91 89 90
3 88.4 93.4 93.7 94.1 94 93.7
HRC
4 24.1 26.8 29 36.2 27.6 27.8
5 61.8 63.3 63.9 62.5 64.2 63.23
6 61.5 63.6 60 63.6 61.5 62.2
6 62.5 62.5 62 63 62.5 62.5
7 64.5 65.5 65.5 65 65.8 65.3
7 40 42 42.5 42.5 42.5 42.3
8 58.6 60.5 58.5 60.6 60.5 59.86
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