Laksteel Electric Resistance welded galvanized pipe Specification for the G.I pipe Normal Size Inch mm Thikness (mm) Out side Diameter (mm) Weight Length ½ 15 1.8 21.4 0.311 ¾ 20 1.8 26.9 0.386 1 25 1.9 33.8 0.513 1¼ 32 2.2 42.5 0.746 1½ 40 2.3 48.4 0.887 2 50 2.6 60.3 1.250 2½ 65 2.7 76.0 1.634 3 75 3.0 88.9 2.121 4 100 3.2 114.3 2.907 * Standerd Length 6 m * Customnized lengths are also accepted