? 埋弧焊螺旋鋼管/
河北螺旋鋼管廠/滄州螺旋鋼管廠無(wú)縫鋼管尺寸及允許偏差 偏差等級(jí)標(biāo)準(zhǔn)化外徑允許偏差D1±1.5%,最小±0.75 mmD2±1.0%。最小±0.50 mmD3±0.75%.最小±0.30 mmD4±0.50%。最小±0.10 mm無(wú)縫鋼管重量公式 [(外徑-壁厚)*壁厚]*0.02466=kg/米(每米的重量) 鍋爐管 規(guī)格規(guī)格規(guī)格規(guī)格規(guī)格4*1/6-14*1-338*5.589*5133*1814*3.542*389*5.5159*614*442*3.589*6159*6.516*342*489*7159*718*242*589*7.5159*818*342*689*8159*9.518*442*889*9159*1018*545*389*10159*1219*245*489*11159*1421*445*589*12159*1622*2.545*6108*4.5159*1822*345*7108*5159*2022*448*4108*6159*2822*548*4.5108*7168*625*2.548*5108*8168*725*348*6108*9168*825*448*7108*10168*9.525*548.3*12.5108*12168*1025*5.551*3108*14168*1127*3.551*3.5108*15168*1227*451*4108*16168*1427*551*5108*20168*1527*5.551*6114*5168*1628*2.557*4114*6168*1828*357*5114*7168*2028*3.557*5.5114*8168*2228*457*6114*8.5168*2530*2.560*4114*9168*2832*2.560*4114*10180*1032*360*5114*11194*1032*3.560*6114*12194*1232*460*7114*13194*1432*4.560*8114*14194*1632*560*9114*16194*1834*360