| SPECIFICATIONS OF BLACK AND GALVANISED STEEL TUBES CONFORMING TO IS:1239 (PART-1) 2004 / BS:1387/1985 | |||||||||||
| Nominal Bore (NB) | Class | Outside Diameter | Thickness | Calculated Nominal Weight | Sockets | ||||||
| Minimum | Maximum | Plain End | Screwed & Socketed | Minimum OD | Minimum Length | ||||||
| mm/inches | mm | mm | mm | Swg | Kg/m | Mtrs/Ton | Kg/m | Mtrs/Ton | mm | mm | |
| 15 (1/2") | L | 21.00 | 21.40 | 2.00 | 14 | 0.947 | 1056 | 0.956 | 1046 | 27.0 | 37.0 |
| M | 21.00 | 21.80 | 2.60 | 12 | 1.210 | 826 | 1.220 | 820 | |||
| H | 21.00 | 21.80 | 3.20 | 10 | 1.440 | 694 | 1.450 | 690 | |||
| 20 (3/4") | L | 26.40 | 26.90 | 2.30 | 13 | 1.380 | 725 | 1.390 | 719 | 32.5 | 39.0 |
| M | 26.50 | 27.30 | 2.60 | 12 | 1.560 | 641 | 15.700 | 637 | |||
| H | 26.50 | 27.30 | 3.20 | 10 | 1.870 | 535 | 1.880 | 532 | |||
| 25 (1") | L | 33.20 | 33.80 | 2.60 | 12 | 1.980 | 505 | 2.000 | 500 | 39.5 | 46.0 |
| M | 33.30 | 34.20 | 3.20 | 10 | 2.410 | 415 | 2.430 | 412 | |||
| H | 33.30 | 34.20 | 4.00 | 8 | 2.930 | 341 | 2.950 | 339 | |||
| 32 (1-1/4") | L | 41.90 | 42.50 | 2.60 | 12 | 2.540 | 394 | 2.570 | 389 | 49.0 | 51.0 |
| M | 42.00 | 42.90 | 3.20 | 10 | 3.100 | 323 | 3.130 | 319 | |||
| H | 42.00 | 42.90 | 4.00 | 8 | 3.790 | 264 | 3.820 | 262 | |||
| 40 (1-1/2") | L | 47.80 | 48.40 | 2.90 | 11 | 3.230 | 310 | 3.270 | 306 | 56.0 | 51.0 |
| M | 47.90 | 48.80 | 3.20 | 10 | 3.560 | 281 | 3.600 | 278 | |||
| H | 47.90 | 48.80 | 4.00 | 8 | 4.370 | 229 | 4.410 | 227 | |||
| 50 (2") | L | 59.60 | 60.20 | 2.90 | 11 | 4.080 | 245 | 4.150 | 241 | 68.0 | 60.0 |
| M | 59.70 | 60.80 | 3.60 | 9 | 5.030 | 199 | 5.100 | 196 | |||
| H | 59.70 | 60.80 | 4.50 | 7 | 6.190 | 162 | 6.260 | 160 | |||
| 65 (2-1/2") | L | 75.20 | 76.00 | 3.20 | 10 | 5.710 | 175 | 5.830 | 172 | 84.0 | 69.0 |
| M | 75.30 | 76.60 | 3.60 | 9 | 6.420 | 156 | 6.540 | 153 | |||
| H | 75.30 | 76.60 | 4.50 | 7 | 7.930 | 126 | 8.050 | 124 | |||
| 80 (3") | L | 87.90 | 88.70 | 3.20 | 10 | 6.720 | 149 | 6.890 | 145 | 98.0 | 75.0 |
| M | 88.00 | 89.50 | 4.00 | 8 | 8.360 | 120 | 8.530 | 117 | |||
| H | 88.00 | 89.50 | 4.80 | 6 | 9.900 | 101 | 10.100 | 99 | |||
| 100 (4") | L | 113.00 | 113.90 | 3.60 | 9 | 9.750 | 103 | 10.060 | 100 | 124.0 | 87.0 |
| M | 113.10 | 115.00 | 4.50 | 7 | 12.200 | 82 | 12.500 | 80 | |||
| H | 113.10 | 115.00 | 5.40 | 5 | 14.500 | 69 | 14.800 | 68 | |||
| 125 (5") | M | 138.50 | 140.80 | 4.80 | 6 | 15.900 | 63 | 16.400 | 61 | 151.0 | 96.0 |
| H | 138.50 | 140.80 | 5.40 | 5 | 17.900 | 56 | 18.400 | 54 | |||
| 150 (6") | M | 163.90 | 166.50 | 4.80 | 6 | 18.900 | 53 | 19.500 | 51 | 178.0 | 96.0 |
| H | 163.90 | 166.50 | 5.40 | 5 | 21.300 | 47 | 21.900 | 46 | |||
| STANDARD TOLERANCES | |||||||||||
| THICKNESS | |||||||||||
| 1 | Light Tubes | + Not Limited | - 8 % | ||||||||
| 2 | Medium & Heavy Tubes | + Not Limited | - 10 % | ||||||||
| WEIGHT | |||||||||||
| 1 | Light Tubes (Single Tubes) | + 10 % | - 8 % | ||||||||
| 2 | Medium & Heavy Tubes (Single Tubes) | + 10 % | - 8 % | ||||||||
| 3 | For quantities minimum load of 10 tonns (Light Tubes) | + 5 % | - 5 % | ||||||||
| 4 | For quantities minimum load of 10 tonns (Medium & Heavy Tubes) | + 7.5 % | - 7.5 % | ||||||||
| LENGTH | |||||||||||
| 1 | Unless otherwise specified 4 to 7 metres | ||||||||||
