20g無錫厚壁鋼管\高壓鍋爐管377*25化學成份
牌號 |
化學成份 | ||||||||
C |
Si |
Mn |
P |
S |
Cr |
Mo |
Cu |
Ni | |
20G |
0.17-0.24 |
0.17-0.37 |
0.35-0.65 |
≤0.030 |
≤0.030 |
≤0.25 |
≤0.15 |
≤0.20 |
≤0.25 |
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