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五金手冊中q345b無縫鋼管黑色金屬硬度及強度換算表
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| 雙擊自動滾屏 |
發布者：lchxdgy 發布時間：2011/4/24 閱讀：2150次 【字體：大 中 小】 |
|
硬度 |
抗拉強度（公斤/毫米2） |
|
洛氏 |
表面洛氏 |
維氏 |
布氏 |
碳鋼 |
鉻鋼 |
鉻釩鋼 |
鉻鎳鋼 |
鉻鉬鋼 |
鉻鎳
鉬鋼 |
鉻錳
硅鋼 |
超高
強度鋼 |
不銹鋼 |
不分
鋼種 |
|
HRC |
HRA |
HR15N |
HR30N |
HR45N |
HV |
HB30D2 |
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(70.0) |
86.6 |
|
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1037 |
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本欄適用
二換算
精度要求
不高的
一般鋼種
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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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|
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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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