| 小口径高压锅管 无锡现货小口径高压锅炉管 18*3  
 机械性能: 
| 标准 | 牌号/抗拉强度(Mpa) | 屈服强度(Mpa) | 伸长率(%) |  
| 5310-95 | 20G | 410~550 | ≥ 245 | ≥ 24 |  
| 25MnG | ≥ 415 | ≥ 240 | ≥ 22 |  
| 15MoG | 450~600 | ≥ 270 | ≥ 22 |  
| 15CrMoG | 440~640 | ≥ 235 | ≥ 21 |  
| 12Cr2MoG | 450~600 | ≥ 280 | ≥ 20 |  
| 12Cr1MoVG | 470~640 | ≥ 255 | ≥ 21 |  化学成份: 
| 标准 | 牌号 | 化学成分 |  
| C | Si | Mn | P | S | Cr | Mo | Cu | Ni |  |  
| GB5310 | 20G | 0.17-0.24 | 0.17-0.37 | 0.35-0.65 | ≤0.030 | ≤0.030 | / | / | ≤0.20 | ≤0.25 | / |  
| 20MnG | 0.17-0.24 | 0.17-0.37 | 0.70-1.00 | ≤0.030 | ≤0.030 | / | / | ≤0.20 | ≤0.25 | / |  
| 15MoG | 0.12-0.18 | 0.17-0.37 | 0.40-0.80 | ≤0.030 | ≤0.030 | / | 0.25-0.35 | ≤0.20 | ≤0.30 | / |  
| 15CrMoG | 0.12-0.18 | 0.17-0.37 | 0.40-0.70 | ≤0.030 | ≤0.030 | 0.80-1.10 | 0.40-0.55 | ≤0.20 | ≤0.30 | / |  
| 12Cr2MoG | 0.08-0.15 | ≤0.50 | 0.40-0.70 | ≤0.030 | ≤0.030 | 2.00-2.50 | 0.90-1.20 | ≤0.20 | ≤0.30 | / |  
| 12Cr1MoVG | 0.08-0.15 | 0.17-0.37 | 0.40-0.70 | ≤0.030 | ≤0.030 | 0.90-1.20 | 0.25-0.35 | ≤0.20 | ≤0.30 | 0.15-0.35 |  
 
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