镀锌钢管的国标厚度及上下公差.doc

标准 外径公差 壁厚公差 D50 0.5mm S4mm 12.5% D50 1% 4mm20mm 12.5% 焊管及镀锌管重量表(按GB/T30912001标准执行)规格 外径mm 壁厚mm 最小壁厚mm 焊管（6米定尺） 镀锌管(6米定尺） 米重kg 根重kg 米重kg 根重kg 公称内径 英寸 DN15 1/2 21.3 2.8 2.45 1.28 7.68 1.357 8.14 DN20 3/4 26.9 2.8 2.45 1.66 9.96 1.76 10.56 DN25 1 33.7 3.2 2.8 2.41 14.46 2.554 15.32 DN32 1.25 42.4 3.5 3.06 3.36 20.16 3.56 21.36 DN40 1.5 48.3 3.5 3.06 3.87 23.22 4.10 24.60 DN50 2 60.3 3.8 3.325 5.29 31.74 5.607 33.64 DN65 2.5 76.1 4.0 3.5 7.11 42.66 7.536 45.21 DN80 3 88.9 4.0 8.38 50.28 8.88 53.28 DN100 4 114.3 4.0 10.88 65.28 11.53 69.18 DN125 5 140 4.5 15.04 90.24 15.942 98.65 DN150 6 168.3 4.5 18.18 109.08 19.27 115.62 DN200 8 219.1 6.0（焊管） 31.53 189.18 DN200 8 219.1 6.5（热镀锌） 36.12 216.7更多镀锌管知识请参考: 6回答者： qinghe5211规格外径mm壁厚mm最小壁厚mm焊管（6米定尺）镀锌管(6米定尺）米重kg根重kg米重kg根重kg公称内径英寸DN151/51.287.681.3578.14DN203/451.669.961.7610.56DN252.4114.462.55415.32DN321.2563.3620.163.5621.36DN401.563.8723.224.1024.60DN502255.2931.745.60733.64DN652.576.14.03.57.1142.667.53645.21DN80388.94.08.3850.288.8853.28DN1004114.34.010.8865.2811.5369.18DN12551404.515.0490.2415.94298.65DN1506168.34.518.18109.0819.27115.62DN2008219.1 6.0（焊管）31.53189.18DN2008219.1 6.5（热镀锌）36.12216.72国标镀锌管规格、国标镀锌管现货天津市兴华钢管物资有限公司 联系电话13803024088规格外径mm壁厚mm最小壁厚mm焊管（6米定尺）镀锌管(6米定尺）米重kg根重kg米重kg根重kg公称内径英寸DN151/51.287.681.3578.14DN203/451.669.961.7610.56DN252.4114.462.55415.32DN321.2563.3620.163.5621.36DN401.563.8723.224.1024.60DN502255.2931.745.60733.64DN652.576.14.03.57.1142.667.53645.21DN80388.94.08.3850.288.8853.28DN1004114.34.010.8865.2811.5369