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ASTM A53 / ASTM A106
级别: 20# 规格: 外径X Sch No.
SizeSizeSize1/8”x Sch401”x Sch403”x Sch401/8”x Sch801”x Sch803”x Sch801/4”x Sch401-1/4”x Sch404”x Sch401/4”x Sch801-1/4”x Sch804”x Sch803/8”x Sch401-1/2”x Sch405”x Sch403/8”x Sch801-1/2”x Sch805”x Sch801/2”x Sch402”x Sch406”x Sch401/2”x Sch802”x Sch806”x Sch803/4”x Sch402-1/2”x Sch408”x Sch403/4”x Sch802-1/2”x Sch808”x Sch80GB/T8162-1999（热轧、挤压、扩管）尺寸公差标准外径公差壁厚公差GB/T8162-1999 D<50±0.5mmS≤4mm±12.5%D≥50±1%4mm20mm±12.5%纵向力学性能标准纲级抗拉强度(MPa)屈服强度(MPa) ≥延伸率(%)≥ ≤16>16-30mmGB/T8163-19991033520519524203902452352035510305295174559033532514Q34549032531521化学成份标准牌号CSiMnP≤S≤Cu≤Ni≤Cr≤Mo≤V≤GB/T8163-1999100.07-0.030.17-0.370.35-0.650.0350.0350.250.300.15//200.17-0.230.17-0.370.35-0.650.0350.0350.250.300.25//350.32-0.390.17-0.370.50-0.800.0350.0350.250.300.25//450.42-0.500.17-0.370.50-0.800.0350.0350.250.300.25//16Mn0.12-0.200.20-0.601.20-1.600.0450.0450.250.250.25//Q/CG46.2-1996（仅限热扩管）结构用管 标 准Q/CG46.2-1996 用 途适用于结构用一般无缝钢管等钢种、标准10、20、35、45、16Mn、合金结构钢等，成分按GB699-88、GB/T1591-94尺寸偏差热扩管D>351, 外径±1%， 壁厚±18%弯曲度 ≤3mm/m力 学性 能钢 种σbN/mm2σs (N/mm2)δs%S<15S>16 - 4020410-540≥255≥245≥2145≥590≥335≥325≥1416Mn≥490≥325≥315≥21水压试验逐根进行、大压力≤8MPa 供方可用涡流或超声检验代水压试验压扁试验D>315、且S≤10时，进行压扁试验。10钢的α=0.09,20、35、45、低合金、合金钢的α=0.07其它项目备 注该标准还包括35Cr、40Cr、12CrMo、35CrMo、12Cr1MoV、30CrMnSi等合金结构钢，性能为调质后性能。
管线管 API SPEC 5L尺寸公差标准外径公差壁厚公差A25.A.BX42-X70D<60.3+0.41/-0.40mmD<73+20/-12.5%D≥73+15/-12.5%API SPEC 5LD≥60.3+0.75/-0.40mmD≥73+15/-12.5%D>73+15/-12.5%机械性能标准纲级屈服强度(MPa)抗拉强度(MPa)延伸率API SPEC 5LPSL1A25172310A207331B241414X42290414X46317434X52359455X56386490X60414517X65448531X70483565PSL2MinMaxMinMaxB241448414758X42290496414758X46317524434758X52359531455758X56386544490758X60414565517758X65448600531758X70483621565758X80552690621827化学成份标准钢级CMnPSMaxMaxMinMaxMaxAPI SPEC 5LPSL1 A25II0.210.600.0300.030A25III0.210.600.450.800.030A0.220.900.0300.030B0.281.200.0300.030X420.281.300.0300.030X46.X52.X560.281.400.0300.030X60.X65.X700.281.400.0300.030PSL2B0.241.200.0250.015X420.241.300.0250.015X46.X52.X560.241.400.0250.015X60.X65.X70.X800.241.400.0250.015
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