BS1387-1985焊接钢管标准(英)

('☆英国标准BS1387-1985焊接钢管标准壁厚(毫米mm)外径(毫米mm)重量(黑管)千克/米平头参考值最大Max最小MinABCABCABCABC2.02.63.221.421.721.721.021.121.10.9471.211.442.32.63.226.927.227.226.426.626.61.381.561.872.63.24.033.834.234.233.233.433.41.982.412.942.63.24.042.542.942.941.942.142.12.543.103.802.93.24.048.448.848.847.848.048.03.233.574.382.93.64.560.260.860.859.659.859.84.085.036.193.23.64.576.076.676.675.275.475.45.716.437.933.24.05.088.789.589.587.988.188.16.728.3710.33.64.55.4113.9114.9114.9113.0113.3113.39.7512.114.5---5.05.4---140.6140.6---138.7138.7---16.617.9---5.05.4---166.1166.1---164.1164.1---19.721.3A级管壁厚允差－80%B级、C级管壁厚允差－10%A－轻级(棕色带)B－中级(蓝色带)C－重级(红色带)成品长度公差为＋20mm/0，客户要求长度公差也可按＋6mm/0执行所有钢管均进行在线涡流探伤检验，涡流探伤按GB/T7735-1995《钢管涡流探伤检验方法》A级标准执行。',)