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 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  | 
 
 
力学性能:  
| 
 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  | 
    | 
 
 
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  |