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焊管分直缝焊接钢管、螺旋缝焊接钢管,直径219mm以内为直缝焊接钢管;直径219mm以上为螺旋缝焊接钢管聊城鑫辰物资有限公司专业销售焊接钢管:联系电话15314172233张征直缝焊接钢管焊管尺寸公径种别规格执行标准焊管4分系列DN1520~21*0.7~2.75GB/T3091-2008焊管6分系列DN2025~26.8*0.7~2.75GB/T3091-2008焊管1寸系列DN2532~33.5*0.8~3.25GB/T3091-2008焊管1.2寸系列DN3240~42*0.9~3.25GB/T3091-2008焊管1.5寸系列DN4047~48*1.0~3.25GB/T3091-2008焊管2寸系列DN5059~60*1.3~3.5GB/T3091-2008焊管2.5寸系列DN6575*1.5~3.75GB/T3091-2008焊管3寸系列DN8088*1.5~4.0GB/T3091-2008焊管4寸系列DN100114*1.1~4.0GB/T3091-2008焊管5寸系列DN125140*2.2~4.5GB/T3091-2008焊管6寸系列DN150165*1.4~4.5GB/T3091-2008焊管8寸系列DN200219*2.0~6.0GB/T3091-2008螺旋缝焊接钢管螺旋钢管标准分为:部标-SY/T5037-2000普通流体输送管道用螺旋缝埋弧焊钢管/ 国标-GB/T9711.1-2000石油天然气工业输送钢管交货技术条件第一部分,A级钢管(到目前要求严格的有GB/T9711.2B级钢管)) 美国石油协会-API-5L管线钢管,分为PSL1和PSL2两个级别 桩用螺旋缝埋弧焊钢管-SY/T5040-92公称外径公称壁厚6789101112131415161820mmin219.12008/5/831.5336.6141.65273.12010/3/439.5245.9452.3323.92012/3/447.0454.7162.3269.8977.41-32547.254.962.5470.1477.68355.61451.7360.1868.5876.9385.23-37754.8963.8772.881.6790.5406.41659.2568.9578.688.297.76107.26116.72-42662.4172.3382.4692.55102.59112.58122.514571866.7377.6888.5899.44110.24120.99131.69-47869.8481.392.72104.09115.41126.69137.95082074.2886.4998.65110.75122.81134.82146.79158.69170.56-52977.3890.11102.78115.4127.99140.52152.99165.43177.85592281.8295.29108.7122.07135.38148.65161.88175.04188.176102489.37104.1118.77133.39147.97162.48176.97191.4205.78-63092.33107.54122.71137.83152.9167.92182.89197.81212.686602696.77112.73128.63144.48160.3176.05191.77207.43223.0471128104.32121.53138.7155.81172.88189.89206.86223.78240.65257.47274.24-720105.65123.09140.47157.81175.1192.34209.52226.66243.75260.8277.7976230111.86130.34148.76167.13185.45203.73221.95240.13258.26276.33294.3681332119.41139.14158.82178.45198.03217.56237.05256.48275.86295.2314.48-82012.45140.35160.2180199.76219.46239.12258.72278.28297.79317.2586434147.94168.88189.77210.61231.4252.14272.83293.48314.06334.6191439178.75200.87222.94244.96266.94288.86310.73332.56354.34-920179.93202.2224.42246.59268.7290.78312.79334.78356.6896538188.81212.19235.52258.8282.03305