GB5310 15CrMoG/20G/25MnG/102 Alloy Thickness Seamless Steel Pipe Boiler Tube
GB5310 15CrMoG/20G/25MnG/102 Alloy thickness Seamless steel pipe boiler tube
Chemical composition
15CrMoG Chemical composition% | ||||||
C |
Si |
Mn |
P |
S |
Cr |
Mo |
0.12~0.18 |
0.15~0.40 |
0.40~0.70 |
≤0.025 |
≤0.025 |
0.80~1.20 |
0.45~0.60 |
| 20G Chemical composition% | ||||||
| C | Si | S | P | Mn | Cr | Mo |
| 0.17-0.24 | 0.17-0.37 | ≤ 0.035 | ≤ 0.035 |
0.35-0.65 | ||
| 25MnG Chemical composition% | ||||||
| C | Si | S | P | Mn | Cr | Mo |
| 0.22~0.30 | 0.17~0.37 |
≤0.030 |
≤0.030 | 0.70~1.00 | ||




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