GB/T8163-1999(热轧、挤压、扩管）尺寸公差标准外径公差壁厚公差GB/T8163-1999D<50mm±0.50mm+15/-12.5%最小：+0.45mmD≥50mm±1%最小：-0.40mm纵向力学性能标准牌号抗拉强度(MPa)屈服强度(MPa)≥延伸率(%)≥≤16>16mmGB/T8163-199910335-4752051952420410-55024523520Q295430-61029528522Q345490-66532531521化学成份标准牌号CSiMnP≤S≤Ni≤Cu≤Cr≤GB/T8163-1999100.07-0.140.17-0.370.35-0.650.0350.0350.250.150.25200.17-0.240.17-0.370.35-0.650.0350.0350.250.250.25Q295A≤0.16≤0.550.80-1.500.0450.0450.300.300.30Q295B≤0.16≤0.550.80-1.500.0400.0400.300.300.30Q345A≤0.20≤0.551.00-1.600.0450.0450.300.300.30Q345B≤0.20≤0.551.00-1.600.0400.0400.300.300.30Q345C≤0.20≤0.551.00-1.600.0350.0350.300.300.30Q345D≤0.18≤0.551.00-1.600.0300.0300.300.300.30Q34≤0.18≤0.551.00-0.020.020.30.30.35E1.6055000下表中黄色表示无产品输送流体用无缝钢管热轧(扩)钢管规格系列GB8163-87单位：mm壁厚4.04.55.06.07.08.09.010.011.012.013.014.015.016.017.018.019.020.022.023.024.025.026.0外径768389102108114121127133140146152159168180194203219245273299325351356377402406426450457465480500508530550560600630输送流体用无缝钢管冷轧(拔)钢管规格系列GB8163-87单位：mm壁厚0.50.60.81.01.21.41.51.61.82.02.22.52.83.03.23.54.04.55.05.56.06.57.07.58.08.59.09.5101112131415161718192021外径678910111213141516171819202122232425272829303234353638404244.545485051535456576063656870737576808385899095100102108110120125130133140150160170180190200210219
