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五金手册中q345b无缝钢管黑色金属硬度及强度换算表
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发布者：lchxdgy 发布时间：2011/4/24 阅读：2138次 【字体：大 中 小】 |
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硬度 |
抗拉强度（公斤/毫米2） |
|
洛氏 |
表面洛氏 |
维氏 |
布氏 |
碳钢 |
铬钢 |
铬钒钢 |
铬镍钢 |
铬钼钢 |
铬镍
钼钢 |
铬锰
硅钢 |
超高
强度钢 |
不锈钢 |
不分
钢种 |
|
HRC |
HRA |
HR15N |
HR30N |
HR45N |
HV |
HB30D2 |
|
(70.0) |
86.6 |
|
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|
1037 |
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本栏适用
二换算
精度要求
不高的
一般钢种
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(69.5) |
86.3 |
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1017 |
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(69.0) |
86.1 |
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997 |
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(68.5) |
85.8 |
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978 |
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(68.0) |
85.5 |
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959 |
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(67.5) |
85.2 |
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|
941 |
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67.0 |
85.0 |
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|
923 |
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66.5 |
84.7 |
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|
906 |
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66.0 |
84.4 |
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|
889 |
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65.5 |
84.1 |
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|
872 |
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65.0 |
83.9 |
92.2 |
81.3 |
71.7 |
856 |
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64.5 |
83.6 |
92.1 |
81.0 |
71.2 |
840 |
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64.0 |
83.3 |
91.9 |
80.6 |
70.6 |
825 |
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63.5 |
83.1 |
91.8 |
80.2 |
70.1 |
810 |
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63.0 |
82.8 |
91.7 |
79.8 |
69.5 |
795 |
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62.5 |
82.5 |
91.5 |
79.4 |
69.0 |
780 |
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62.0 |
82.2 |
91.4 |
79.0 |
68.4 |
766 |
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61.5 |
82.0 |
91.2 |
78.6 |
67.9 |
752 |
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61.0 |
81.7 |
91.0 |
78.1 |
67.3 |
739 |
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60.5 |
81.4 |
90.8 |
77.7 |
66.8 |
726 |
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