最全的钢管壁厚、重量对比表序号公称内径英寸外径mm壁厚mm最小壁厚mm镀锌钢管焊接钢管加厚钢管备注米重kg根重kg米重kg根重kg米重kg根重kg1DN61/81021.50.462.760.392.34--2DN81/413.52.2520.734.380.623.72--3DN103/8172.2520.975.820.824.92--4DN151/221.32.82.451.348.041.267.561.3578.1425DN203/426.92.82.451.7310.381.639.781.7610.566DN25133.73.22.82.5715.422.4214.522.55415.3247DN321.2542.43.53.063.3219.923.1318.783.5621.368DN401.548.33.53.064.0724.423.8423.044.124.69DN50260.33.83.3255.1731.024.8829.285.60733.64210DN652.576.143.57.0442.246.6439.847.53645.21611DN80388.943.58.8453.048.3450.048.8853.2812DN1004114.343.511.56910.8565.111.5369.1813DN12551404.5415.9495.6415.0490.2415.94295.65214DN1506168.34.5418.88113.2817.81106.8619.27115.6215DN2008219.16.5633.41200.4631.52189.12--注：1、镀锌管表面质量：镀锌钢管的内表面应有完整的镀锌层。
不得有未镀上黑斑和气泡存在允许有不大的粗糙面和局部的锌瘤存在2、焊接管表面质量：根据钢管相应的制造方法，钢管内外表面应光滑，不允许有折叠、裂缝、分层、搭焊缺陷存在钢管表面允许有不超过壁厚负偏 差的划道、刮伤、搭缝错位、烧伤和结疤等缺陷存在允许焊缝处壁厚和内缝焊筋存在。