执行标准: GB3087(2008) —— 低中压锅炉用无缝钢管(国标) GB5310 (2008)—— 高压锅炉用无缝钢管(国标) ASTM A106 —— 高温用无缝碳钢公称管(美标)
化学成分:
标准 |
牌号 |
化学成分(%) |
C |
Si |
Mn |
P |
S |
Cr |
Mo |
Cu |
Ni |
V |
Alt |
W |
Nb |
N |
GB3087 |
10 |
0.07~0.13 |
0.17~0.37 |
0.38~0.65 |
≤0.030 |
≤0.030 |
0.3~0.65 |
|
≤0.25 |
≤0.30 |
|
|
|
|
|
20 |
0.17~0.23 |
0.17~0.37 |
0.38~0.65 |
≤0.030 |
≤0.030 |
0.3~0.65 |
|
≤0.25 |
≤0.30 |
|
|
|
|
|
GB5310 |
20G |
0.17~0.23 |
0.17~0.37 |
0.35~0.65 |
≤0.025 |
≤0.015 |
≤0.25 |
≤0.15 |
≤0.20 |
≤0.25 |
≤0.08 |
|
|
|
|
20MnG |
0.17~0.23 |
0.17~0.37 |
0.70~1.00 |
≤0.025 |
≤0.015 |
≤0.25 |
≤0.15 |
≤0.20 |
≤0.25 |
≤0.08 |
|
|
|
|
25MnG |
0.23~0.27 |
0.17~0.37 |
0.70~1.00 |
≤0.025 |
≤0.015 |
≤0.25 |
≤0.15 |
≤0.20 |
≤0.25 |
≤0.08 |
|
|
|
|
15CrMoG |
0.12~0.18 |
0.17~0.37 |
0.40~0.70 |
≤0.025 |
≤0.015 |
0.80~1.10 |
0.40~0.55 |
≤0.20 |
≤0.30 |
|
|
|
|
|
12Cr2MoG |
0.08~0.15 |
≤0.50 |
0.40~0.60 |
≤0.025 |
≤0.015 |
2.00~2.50 |
0.90~1.13 |
≤0.20 |
≤0.30 |
|
|
|
|
|
12Cr1MoVG |
0.08~0.15 |
0.17~0.37 |
0.40~0.70 |
≤0.025 |
≤0.010 |
0.90~1.20 |
0.25~0.35 |
≤0.20 |
≤0.30 |
0.15~0.30 |
|
|
|
|
10Cr9Mo1VNbN |
0.08~0.12 |
0.20~0.50 |
0.30~0.60 |
≤0.020 |
| |