供应Q345B高压无缝管 现货GB6479无缝管
力学性能:
标准 | 牌号 | 抗拉强度(MPa) | 屈服强度(MPa) | 伸长率(%) | 冲击功(J) | 低温冲击Akv |
GB6479 | 10 | 335~490 | ≥205 | ≥24 | / | -20℃≥18 |
20 | 410~550 | ≥245 | ≥24 | ≥39 | -20℃≥18 | |
16Mn | 490~670 | ≥320 | ≥21 | ≥47 | -40℃≥21 | |
10MoWVNb | 470~670 | ≥295 | ≥19 | ≥62 | | |
15CrMo | 440~640 | ≥235 | ≥21 | ≥47 | | |
1Cr5Mo | 390~590 | ≥195 | ≥22 | ≥94 | | |
12 Cr2Mo | 450~600 | ≥280 | ≥20 | ≥38 | |
化学成分:
标准 | 牌号 | 化学成分(%) | | | | | | | |
C | Si | Mn | P | S | Cr | Mo | Ni | | |
GB 6479 | 10 | 0.07~0.14 | 0.17~0.37 | 0.35~0.65 | ≤0.030 | ≤0.030 | / | / | / |
20 | 0.17~0.24 | 0.17~0.37 | 0.35~0.65 | ≤0.030 | ≤0.030 | / | / | / | |
16Mn | 0.12~0.20 | 0.20~0.60 | 1.20~1.60 | ≤0.030 | ≤0.030 | | | | |
10MoWVNb | 0.07~0.13 | 0.50~0.80 | 0.50~0.80 | ≤0.030 | ≤0.030 | / | 0.60~0.90 | / | |
15CrMo | 0.12~0.18 | 0.17~0.37 | 0.40~0.70 | ≤0.030 | ≤0.030 | 0.80~1.10 | 0.40~0.55 | / | |
1Cr5Mo | ≤0.15 | ≤0.50 | ≤0.60 | ≤0.030 | ≤0.030 | 4.00~6.00 | 0.45~0.60 | ≤0.60 | |
12 Cr2Mo | 0.80~0.15 | ≤0.50 | 0.40~0.70 | ≤0.030 | ≤0.030 | 2.0~2.50 | 0.90~1.20 | | |
注:其中10的残余元素含量Ni≤0.25%、Cr≤0.15%、Cu≤0.20%20的残余元素含量Ni≤0.25%、Cr≤0.25%、Cu≤0.20%、Mo≤0.15%、V≤0.08%其他的残余元素含量Ni≤0.30%、Cr≤0.30%、Cu≤0.20%