燃气管道常用管材规格

无缝钢管(输送流体用无缝钢管(GB/T8163-1999)序号规格型号DN公称外径×壁厚mm内径mm备注1DN15D18×2.515.82D22×3.021.33DN20D25×3.0194DN25D32×3.5255DN32D38×3.5316DN40D45×3.5387DN50D57×3.5508DN70D76×4.0689DN80D89×4.08110DN100D108×4.010011DN125D133×4.012512DN150D159×6.014713DN200D219×6.020714DN225D245×6.020715DN250D273×7.04117DN300D325×8.06818DN400D426×9.080.519DN500D530×9.010620DN500D630×9.013221DN500D720×10.0157DN600D820×10.0DN700D920×10.0DN800D1020×10.0DN900D1220×10.0DN1000DN1200DN1500镀锌钢管(低压流体输送用镀锌焊接钢管GB/T3091-2001)序号规格型号DN公称外径×壁厚mm内径mm备注1DN1521.3×2.7515.82DN2026.8×2.7521.33DN2533.5×3.25274DN3242.3×3.2535.85DN4048×3.5416DN5060×3.5537DN6575.5×3.75688DN8088.5×4.080.59DN100114×4.010610DN125140×4.013211DN150165×4.01576m三、焊接钢管（低压流体输送用焊接钢管（GB/T3092-1993）/4.直缝电焊钢管（YB242-63）序号规格型号DN公称外径×壁厚mm内径mm备注1DN15D18×2.515.82D22×3.021.33DN20D25×3.0194DN25D32×3.5255DN32D38×3.5316DN40D45×3.5387DN50D57×3.5508DN70D76×4.0689DN80D89×4.08110DN100D108×4.010011DN125D133×4.012512DN150D159×6.014713DN200D219×6.020714DN225D245×6.020715DN250D273×7.04117DN300D325×8.06818DN400D426×9.080.519DN500D530×9.010620DN500D630×9.013221DN500D720×10.0157DN600D820×10.0DN700D920×10.0DN800D1020×10.0DN900D1220×10.0DN1000D720×4.0DN1200D720×4.0DN1500D720×4.0四、螺旋焊管（一般低压流体输送用螺旋缝埋弧焊钢管（SY5037-83））序号规格型号DN公称外径×壁厚mm内径mm备注1DN200D219×6.02072DN225D245×6.02073DN250D273×7.0414DN300D325×8.0685DN400D426×9.080.56DN500D530×9.01067DN500D630×9.01328DN500D720×10.01579DN600D820×10.010DN700D920×10.011DN800D1020×10.012DN