冷拔扁鋼G高壓合金無縫管力學機能化學成份

尺寸公役尺度外徑公役壁厚公役GB/T8163-1999D<50mm±0.50mm+15/-15.5%最?。?0.45mmD≥50mm±1%最小：-0.40mm縱向力學機能尺度商標抗拉強度(MPa)屈就強度(MPa) ≥延長率(%)≥≤16>16mmGB/T8163-199910335-4752051952420410-55024523520Q295430-61029528522Q345490-66532531521化學成份尺度商標CSiMnP≤S≤Ni≤Cu≤Cr≤GB/T8163-1999100.07-0.140.17-0.370.35-0.650.0350.0350.250.150.25200.17-0.240.17-0.370.35-0.650.0350.035小口徑合金管" style="color: rgb(255, 0, 0); text-decoration: underline;">小口徑合金管0.250.250.25Q295 A≤0.16≤0.550.80-1.500.0450.0450.300.300.30Q295 B≤0.16≤0.550.80-1.500.0400.0400.300.300.30Q345 A≤0.20≤0.551.00-1.600.0450.0450.300.300.30Q345 厚壁合金管" style="color: rgb(255, 0, 0); text-decoration: underline;">厚壁合金管B≤0.20≤0.551.00-1.600.0400.0400.300.300.30Q345 C≤0.20≤0.551.00-1.600.0350.0350.300.300.30Q345 D≤0.18≤0.551.00-1.600.0300.0300.300.300.30Q345 E≤0.18≤0.551.00-1.600.0250.0250.300.300.30 高壓汽鍋管

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