异型钢管规格型号对照表和成分检验标准异型管成分检验标准折叠是异型管表面形成的各种折线，这种缺陷往往贯穿整个产品的纵向。产生折叠的原因是由于伪劣厂家追求高效率，压下量偏大，产生耳子，下一道… 异型管成分检验标准 折叠是异型管表面形成的各种折线，这种缺陷往往贯穿整个产品的纵向。产生折叠的原因是由于伪劣厂家追求高效率，压下量偏大，产生耳子，下一道轧制时就产生折叠，折叠的产品折弯后就会开裂，钢材的强度大下降。 伪劣异型管无金属光泽，呈淡红色或类似生铁的颜色，原因有两点二、它的坯料是土坯。2、伪劣材轧制的温度不标准，他们的钢温是通过目测的，这样无法按规定的奥氏体区域进行轧制，异型管钢材的性能自然就无法达标。 异型钢管规格型号对照表 1/8"10.29--1.240.2811.7303712.410.467-- 1/4"13.72--1.650.4992.240.6443.020.809-- 3/8"17.15--1.650.6402.310.8583.201.118-- 1/2"21.341.650.8142.111.0162.771.263.731.62-- 3/4"26.671.651.0342.111.2982.871.683.912.19-- 1"33.401.651.3122.772.1253.3382.504.553.23-- 11/4"42.161.651.6742.772.7323.563.384.854.46-- 11/2"48.261.651.9262.773.1553.684.055.085.40-- 2"60.331.652.4242.773.9923.915.435.547.47-- 21/2"73.032.113.7473.055.3455.168.627.0111.40-- 3"88.902.114.5853.056.5575.4911.287.6215.25-- 31/2"101.602.115.2723.057.5265.7413.568.0818.62-- 4"114.302.115.9453.058.4966.0216.068.5622.29-- 5"141.302.779.6393.4011.7406.5521.769.5230.92-- 6"168.302.7711.5143.4014.0377.1128.2310.9742.52-- 8"219.082.7715.0493.7620.3348.1842.4912.764.57-- 10"273.053.4023.0284.1928.2909.2760.2412.781.46-- 12"323.853.9631.8064.5736.6339.5273.7612.797.36-- 14"355.603.9834.994.7842.102----6.3554.63 16"406.404.1942.354.7848.220----6.3562.58 18"457.204.1947.74.7854.300----6.3570.50 20"5084.7760.325.5369.766----6.3578.47 22"553.84.77-5.53-----6.3586.42 24"609.65.5484.106.3596.215----6.3596.215 26"660.4--------7.92127.58 28"711.6--------7.92137.52 30"7626.35120.597.92147.45----7.92147.45 32"812.8--------7.92157.39 34"863.6--------7.92167.32 36"914.4--------7.92177.26公司网址：http://www.yxgcj.com/