weight of gi square pipe: 1) Thickness:0.5-60mm 2) Outer diameter10*10mm~ ... ) L:2~11.8m 4) Material:Q195,Q weight of gi square pipe 1.size:10*10mm-600*600mm2.thickness:0.5mm ... A53, ASTM A363.length:2~11.8m4. High Quality: ISO900:2000, API5L, API5CL Product square steel pipesStandardGB/T3091-2001,BS1387,ASTM A53 ... , eddy current testing machine,Mechanics testing machine to make sure high quality.