钢塑复合管是近年来发展的一种新型管道材料,它以无缝钢管、焊接钢管、镀锌钢管为基体,与各种类型的塑料(如环氧树脂、聚乙烯等)经复合而成。按塑料与基体结合的工艺可分为衬塑复合钢管和涂塑复合钢管两种规格DN(mm) 外径(mm)壁厚(mm)米重(kg) 支重(kg) 内表面积(m²)外表面积(m²)每吨内表面积(m²)每吨外表面积(m²) 50×2.5059.52.53.6421.841.0273 1.121548 4751.350×2.7559.52.753.9923.921.0178751.12154842.546.950×3.006034.3726.211.0178751.13097238.843.150×3.50(Ⅱ)6034.3726.211.0178751.13097238.843.150×3.50(Ⅰ)603.254.7128.27 1.00845 1.130972 35.74050×3.50603.55.0530.31 0.9990261.1309723337.365×2.7574.82.755.0530.311.3062731.40994643.146.565×3.0074.835.4932.951.2968481.40994639.442.865×3.75(Ⅱ)