M.S. ERW Pipes
IS 1239:1968
Steel Tubes and Tubulars (Light, Medium, Heavy)
| Nominal Bore | Outside Diameter | Thickness | |||||||
| max | min | Plain End | |||||||
| in | in | mm | in | mm | in | mm | kg/ft | kg/mtr | |
| Light | *3/8 | 0.671 | 17.1 | 0.656 | 16.7 | 0.072 | 1.8 | 0.205 | 0.674 |
| 1/2 | 0.841 | 21.4 | 0.825 | 21.0 | 0.080 | 2 | 0.290 | 0.952 | |
| 3/4 | 1.059 | 26.9 | 1.041 | 26.4 | 0.092 | 2.35 | 0.428 | 1.41 | |
| 1 | 1.328 | 33.8 | 1.309 | 33.2 | 0.104 | 2.65 | 0.612 | 2.01 | |
| 1 1/4 | 1.670 | 42.5 | 1.650 | 41.9 | 0.104 | 2.65 | 0.785 | 2.58 | |
| 1 1/2 | 1.903 | 48.4 | 1.882 | 47.8 | 0.116 | 2.9 | 0.993 | 3.25 | |
| 2 | 2.370 | 60.2 | 2.347 | 59.6 | 0.116 | 2.9 | 1.25 | 4.11 | |
| 2 1/2 | 2.991 | 76.0 | 2.960 | 75.2 | 0.128 | 3.25 | 1.77 | 5.80 | |
| 3 | 3.491 | 88.7 | 3.460 | 87.9 | 0.128 | 3.25 | 2.08 | 6.81 | |
| 4 | 4.481 | 113.9 | 4.450 | 113.0 | 0.144 | 3.65 | 3.01 | 9.89 | |
| Medium | *3/8 | 0.686 | 17.5 | 0.660 | 16.7 | 0.092 | 2.35 | 2.260 | 0.852 |
| 1/2 | 0.856 | 21.8 | 0.831 | 21.0 | 0.104 | 2.65 | 0.373 | 1.22 | |
| 3/4 | 1.072 | 27.3 | 1.047 | 26.5 | 0.194 | 2.65 | 0.481 | 1.58 | |
| 1 | 1.346 | 34.2 | 1.316 | 33.3 | 0.128 | 3.25 | 0.744 | 2.44 | |
| 1 1/4 | 1.387 | 42.9 | 1.657 | 42.0 | 0.128 | 3.25 | 0.957 | 3.14 | |
| 1 1/2 | 1.919 | 48.8 | 1.889 | 47.9 | 0.128 | 3.25 | 1.10 | 3.61 | |
| 2 | 2.094 | 60.8 | 2.334 | 59.7 | 0.144 | 3.25 | 1.55 | 5.10 | |
| 2 1/2 | 3.014 | 76.6 | 2.969 | 75.3 | 0.144 | 3.65 | 1.99 | 6.61 | |
| 3 | 3.524 | 89.5 | 3.469 | 88.0 | 0.160 | 4.05 | 2.58 | 8.47 | |
| 4 | 4.524 | 115.0 | 4.459 | 113.1 | 0.176 | 4.05 | 3.69 | 12.1 | |
| 5 | 5.534 | 140.8 | 5.459 | 138.5 | 0.192 | 4.85 | 4.94 | 16.2 | |
| 6 | 6.539 | 166.5 | 6.459 | 163.9 | 0.192 | 4.85 | 5.85 | 19.2 | |
| Heavy | *3/8 | 0.685 | 17.5 | 0.660 | 16.7 | 0.116 | 2.9 | 0.311 | 1.02 |
| 1/2 | 0.856 | 21.8 | 0.831 | 21.0 | 0.128 | 3.25 | 0.443 | 1.45 | |
| 3/4 | 1.072 | 27.3 | 1.047 | 26.5 | 0.128 | 3.25 | 0.576 | 1.90 | |
| 1 | 1.346 | 34.2 | 1.316 | 33.3 | 0.160 | 4.05 | 0.907 | 2.97 | |
| 1 1/4 | 1.387 | 42.9 | 1.657 | 42.0 | 0.160 | 4.05 | 1.17 | 3.84 | |
| 1 1/2 | 1.919 | 48.8 | 1.889 | 47.9 | 0.160 | 4.05 | 1.35 | 4.43 | |
| 2 | 2.094 | 60.8 | 2.334 | 59.7 | 0.176 | 4.5 | 1.39 | 6.17 | |
| 2 1/2 | 3.014 | 76.6 | 2.969 | 75.3 | 0.176 | 4.5 | 2.41 | 7.90 | |
| 3 | 3.524 | 89.5 | 3.469 | 88.0 | 0.192 | 4.85 | 3.07 | 10.1 | |
| 4 | 4.524 | 115.0 | 4.459 | 113.1 | 0.212 | 5.4 | 4.40 | 14.4 | |
| 5 | 5.534 | 140.8 | 5.459 | 138.5 | 0.212 | 5.4 | 5.44 | 17.8 | |
| 6 | 6.539 | 166.5 | 6.459 | 163.9 | 0.212 | 5.4 | 6.49 | 21.2 | |