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								| 美标低温无缝管化学成分|美标低温管化学成分 |  
								| 双击自动滚屏 | 发布者:www.pipezx.com 发布时间:2010/6/30 阅读:3508次 【字体:大 中 小】 |  |  |  
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									美标低温无缝管化学成分|美标低温管化学成分-无缝钢管知识
									美标低温无缝管化学成分|美标低温管化学成分 
 
| 标准 | 牌号 | 化学成分(%) |  
| C | Si | Mn | P | S | Cr | Ni | Cu | Mo | V | Al |  
| ASTM A333 | Grade 1 | ≤0.30 |   | 0.40-1.06 | ≤0.025 | ≤0.025 |   |   |   |   |   |   |  
| Grade 3 | ≤0.19 | 0.18-0.37 | 0.31-0.64 | ≤0.025 | ≤0.025 |   | 3.18-3.82 |   |   |   |   |  
| Grade 4 | ≤0.12 | 0.18-0.37 | 0.50-1.05 | ≤0.025 | ≤0.025 | 0.44-1.01 | 0.47-0.98 | 0.40-0.75 |   |   | 0.04-0.30 |  
| Grade 6 | ≤0.30 | ≥0.10 | 0.29-1.06 | ≤0.025 | ≤0.025 |   |   |   |   |   |   |  
| Grade 7 | ≤0.19 | 0.13-0.32 | ≤0.90 | ≤0.025 | ≤0.025 |   | 2.03-2.57 |   |   |   |   |  
| Grade 8 | ≤0.13 | 0.13-0.32 | ≤0.90 | ≤0.025 | ≤0.025 |   | 8.40-9.60 |   |   |   |   |  
| Grade 9 | ≤0.20 |   | 0.40-1.06 | ≤0.025 | ≤0.025 |   | 1.60-2.24 | 0.75-1.25 |   |   |   |  
| Grade 10 | ≤0.20 | 0.10-0.35 | 1.15-1.50 | ≤0.03 | ≤0.015 | ≤0.15 | ≤0.25 | ≤0.015 | ≤0.50 | ≤0.12 | ≤0.06 |  
| Grade 11 | ≤0.10 | ≤0.35 | ≤0.6 | ≤0.025 | ≤0.025 | ≤0.50 | 35.0-37.0 |   | ≤0.50 |   |  |  
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