钢塑复合管规格技术参数公称通径mm1520322540506580100125150200250300350400in1/2寸3/4寸1寸11/4寸11/2寸2寸21/2寸3寸4寸5寸6寸8寸10寸12寸14寸16寸mm21.326.833.542.3486075.588.5114139.7165219.1273323.9377426±2.0mm±0.5mm±1.0mm外径内衬塑壁厚mm1.51.51.51.51.51.51.52222.52.52.52.5330.2管径不大于100mm时宜采用螺纹连接；管径不小于65mm可采用沟槽-0.2钢管壁厚mm2.752.753.253.253.53.53.754444.55678812%-12%复合管壁厚mm4.254.254.754.75555.2566677.58.59.5111115%-15%衬塑管理论重量kg/m1.3851.82.643.4144.1665.2967.1959.11311.86614.68319.58328.77342.48158.24177.46687.76853251010744