Dimensions and Weight of Black & Galvanised Steel Tubes Conforming to BS: 1387/ASTM A-120
NB & Series Approx. Outside Diameter Wall Thickness Approx. Weight of Tubes Sockets
mm Min. mm Max. mm mm Gauge Kg/Mtr Mtr/MT Kg/Mtr Mtr/MT No. of Pipes O.D Length
15L 21.0 21.4 2.0 14 0.947 1055 0.956 1046 174 27.0 37
M 21.1 21.7 2.6 12 1.21 826 1.22 819 136 - -
H 26.1 21.7 3.2 10 1.44 694 1.45 689 114 - -
20L 26.4 26.9 2.3 13 1.38 724 1.39 719 119 32.5 39
M 26.6 27.2 2.6 12 1.56 641 1.57 636 106 - -
H 26.6 27.2 3.2 10 1.87 534 1.88 513 88 - -
25L 33.2 33.8 2.6 12 1.98 505 2.00 500 83 39.5 46
M 33.4 34.2 3.2 10 2.41 405 2.43 412 68 - -
H 33.4 34.2 4.0 8 2.94 341 2.96 338 56 - -
32L 41.9 42.5 2.6 12 2.54 394 2.57 389 65 49.0 51
M 42.1 42.9 3.2 10 3.10 322 3.13 319 53 - -
H 42.1 42.9 4.0 8 3.79 264 3.82 261 43 - -
40L 47.8 48.4 2.9 11 3.23 309 3.27 305 51 56.0 51
M 48.0 48.8 3.2 10 3.57 280 3.61 227 46 - -
H 48.0 48.8 4.0 8 4.38 229 4.42 226 37 - -
50L 59.6 60.2 2.9 11 4.08 245 4.15 241 40 68.0 60
M 59.8 60.8 3.6 9 5.03 199 5.10 196 32 - -
H 59.8 60.8 4.5 7 6.19 161 6.26 159 26 - -
65L 75.2 76.0 3.2 10 5.71 175 5.83 171 28 84.0 69
M 75.4 76.6 3.6 9 6.43 156 6.55 153 25 - -
H 75.4 76.6 4.5 7 7.93 126 8.05 124 20 - -
80L 87.9 88.7 3.2 10 6.72 149 6.89 145 24 98.0 75
M 88.1 89.5 4.0 8 8.37 120 8.54 117 19 - -
H 88.1 89.5 5.0 6 10.30 97 10.50 95 16 - -
100L 113.0 113.9 3.6 9 9.75 102 10.00 100 16 124.0 87
M 113.3 114.9 4.5 7 12.20 82 12.50 80 13 - -
H 113.3 114.9 5.4 5 14.50 69 14.80 67 11 - -
125M 138.7 140.6 5.0 6 16.60 60 17.10 58 10 151.0 -
H 138.7 140.6 5.4 5 17.90 56 18.40 54 8 - -
150M 164.1 166.1 5.0 6 19.70 51 20.30 49 8 178.0 96
H 164. 166.1 5.4 5 21.30 46 21.90 45 7 - -