常用鋼管尺寸規(guī)格一覽表

常用鋼管規(guī)格及用途外徑壁厚（mm）2.53.03.54.04.55.06.07.08.09.010.012.0mm理論重量（公斤/米）120.5860.6660.7340.789_———————140.7090.810.910.99--------180.9561.111.251.381.501.60——————201.081.261.421.581.721.852.07-----251.391.631.862.072.282.472.813.11————321.762.152.462.763.053.333.854.324.47———382.192.592.983.353.724.074.745.355.95---422.442.893.353.754.16.4.565.336.046.717.32——452.623.113.584.044.494.935.776.567.307.99——573.364.004.625.235.836.417.558.639.6710.65--603.554.224.885.526.166.787.999.1510.2611.32——734.355.186.006.817.608.389.9111.3912.8214.21--764.535.406.267.107.938.7510.3611.9113.1214.37--895.336.367.388.389.3810.3612.2814.1615.9817.76——

1026.137.328.509.6710.8211.9614.2116.4018.5520.64_—1086.507.779.0210.2611.4912.7015.0917.4419.7321.97--11410.4812.1513.4415.9818.4720.9123.3125.5630.1913312.7314.2615.7818.7921.7524.6627.5230.3335.8114013.4215.0716.6519.8322.9626.0429.0832.0637.8815917.1518.9922.6426.2429.7933.2936.7543.5016820.1023.9727.7931.5735.2938.9746.1721931.5236.6041.6346.6151.5461.2624541.0946.7652.3857.9568.9527345.9252.2858.6064.8677.2432562.5470.1477.6892.6337781.6890.51108.0242692.55102.59122.52480104.54115.90139.49530115.62128.23154.29備注:管徑應(yīng)以mm為單位，管徑的表達方式應(yīng)符合下列規(guī)定：1水煤氣輸送鋼管（鍍鋅或非鍍鋅）、鑄鐵管等管材，管徑宜以公稱直徑DN表示;2無縫鋼管、焊接鋼管（直縫或螺旋縫）、銅管、不銹鋼管等管材，管徑宜以Dx5（外徑x壁厚）表示；3鋼筋混凝土（或混凝土）管、陶土管、耐酸陶瓷管、缸瓦管等管材，管徑宜以內(nèi)徑d表示；4塑料管材，管徑宜按產(chǎn)品標(biāo)準(zhǔn)的方法表示：當(dāng)設(shè)計均用公稱直徑DN表示管徑時，應(yīng)有公稱直徑DN與相應(yīng)產(chǎn)品規(guī)格對照表。建筑排水用硬聚氯乙烯管材規(guī)格用de（公稱外徑）xe（公稱壁厚）表示（GB5836.1-92）給水用聚丙烯（PP）管材規(guī)格用dexe表示（公稱外徑x壁厚）公英制單位換算1英寸=25.4毫米=8英分1/2是四分2'DN502.5'DN653'DN80（4英分）DN1534是六分（6英分）4'DN1005'DN1256'DN150DN202分管DN84分管DN156分管8'DN20010'DN25012'DN300DN201'DN251.2'DN321.5'DN40鋼管每米理論重量計算公式：W=3.1416*p5（D—5）/1000W 鋼管每米理論重量kg/m；P——鋼的密度kg/dm-3；7.81、7.85、7.91D――鋼管的公稱外徑mm；5――鋼管的公稱壁厚mm；用途產(chǎn)品類別主要材質(zhì)執(zhí)行標(biāo)準(zhǔn)用途規(guī)格范圍合金管12Cr1MoVP22(10CrMo910)T91、P91、P9、T9、WB36、Cr5Mo(P5、STFA25、T5、 )、15CrMo(P11、P12、DIN17175-79JISG3467-88JISG3458-88GB5310-95GB9948-88ASTMA335/A335mASTMA213/A213m石油、化工、電力、鍋爐行業(yè)的耐高溫、耐低溫、耐腐蝕用無縫鋼管小16-824x2-100

STFA22)13CrMo44高壓鍋爐管20G、A106cST45.8/GB5310-95ASTMA106-99DIN17175-79高壓鍋爐用耐熱無縫鋼管小16-824x2-65低中壓鍋爐管10、20GB3087-1999低中壓鍋爐過熱用管、沸水管、機車大小煙管小10-530x2-40流體管20、Q345GB/T8163-1999流體輸送小8-630x1.5-75結(jié)構(gòu)管10、20、35、45、16Mn、Q345BGB/T8162-1999一般結(jié)構(gòu)用小6-610x1-70石油裂化管2012CrMo15CrMoGB9948-88石油煉精廠的爐管、熱交換管、管道用無縫管小10.530x1.5-40化肥設(shè)備用高壓無縫管20、16Mn、Q345GB6479-2000化肥設(shè)備、管道小25-426x6-40液壓支柱管27SiMnGB/