現 6 . | 無縫鋼管 | 山東 | 12×1 | 20#8163 | 4.6 | 面議 | 聊城匯興達 | ||
現 7 . | 無縫鋼管 | 山東 | 12×1 | 20#8163 | 4.6 | 面議 | 聊城匯興達 |
標準 |
牌號 |
化學成分(%) | |||||||||
C |
Si |
Mn |
P |
S |
Cu |
Ni |
Mo |
Cr |
V | ||
GB/T8162 |
10 |
0.07-0.14 |
0.17-0.37 |
0.35-0.65 |
≤0.035 |
≤0.035 |
≤0.25 |
≤0.25 |
/ |
≤0.15 |
/ |
20 |
0.17-0.24 |
0.17-0.37 |
0.35-0.65 |
≤0.035 |
≤0.035 |
≤0.25 |
≤0.25 |
/ |
≤0.25 |
/ | |
35 |
0.32-0.40 |
0.17-0.37 |
0.50-0.80 |
≤0.035 |
≤0.035 |
≤0.25 |
≤0.25 |
/ |
≤0.25 |
/ |