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ASTM A333 GR.6低温管和焊接低温钢管ASTM A333 GR.6低温管和焊接低温钢管
标准:ASTM A333——Seamless and Welded Steel Pipe for Low-Temperature Service
主要生产钢管牌号:Grade 1, Grade 3, Grade 4, Grade 6, Grade 7, Grade 8, Grade 9, Grade 10, Grade 11冲击温度:
| 级别 | 最低冲击试验温度 | |
| ℉ | ℃ | |
| Grade 1 | -50 | -45 |
| Grade 3 | -150 | -100 |
| Grade 4 | -150 | -100 |
| Grade 6 | -50 | -45 |
| Grade 7 | -100 | -75 |
| Grade 8 | -320 | -195 |
| Grade 9 | -100 | -75 |
| Grade 10 | -75 | -60 |
| 标准 | 牌号 | 抗拉强度(MPa) | 屈服强度(MPa) | 伸长率(%) | |
| 纵 向 | 横 向 | ||||
| ASTM A333 | Grade 1 | ≥380 | ≥205 | ≥35 | ≥25 |
| Grade 3 | ≥450 | ≥240 | ≥30 | ≥20 | |
| Grade 4 | ≥415 | ≥240 | ≥30 | ≥16.5 | |
| Grade 6 | ≥415 | ≥240 | ≥30 | ≥16.5 | |
| Grade 7 | ≥450 | ≥240 | ≥30 | ≥22 | |
| Grade 8 | ≥690 | ≥515 | ≥22 | | |
| Grade 9 | ≥435 | ≥315 | ≥28 | | |
| Grade 10 | ≥550 | ≥450 | ≥22 | | |
| Grade 11 | ≥450 | ≥240 | ≥18 | | |
| 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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