Weight chart
MS Pipe Weight Chart — IS 1239 Light, Medium, Heavy
MS / GI pipe wall thickness and weight per metre for IS 1239 light, medium and heavy class, 15 NB to 150 NB, with outside diameters.
| Nominal bore | OD (mm) | Light: wall / kg/m | Medium: wall / kg/m | Heavy: wall / kg/m |
|---|---|---|---|---|
| 15 NB (½″) | 21.3 | 2.0 / 0.95 | 2.6 / 1.20 | 3.2 / 1.43 |
| 20 NB (¾″) | 26.9 | 2.35 / 1.42 | 2.6 / 1.56 | 3.2 / 1.87 |
| 25 NB (1″) | 33.7 | 2.65 / 2.03 | 3.2 / 2.41 | 4.0 / 2.93 |
| 32 NB (1¼″) | 42.4 | 2.65 / 2.60 | 3.2 / 3.09 | 4.0 / 3.79 |
| 40 NB (1½″) | 48.3 | 2.9 / 3.25 | 3.2 / 3.56 | 4.0 / 4.37 |
| 50 NB (2″) | 60.3 | 2.9 / 4.10 | 3.6 / 5.03 | 4.5 / 6.19 |
| 65 NB (2½″) | 76.1 | 3.25 / 5.84 | 3.6 / 6.44 | 4.5 / 7.95 |
| 80 NB (3″) | 88.9 | 3.25 / 6.86 | 4.0 / 8.37 | 4.85 / 10.05 |
| 100 NB (4″) | 114.3 | 3.65 / 9.96 | 4.5 / 12.18 | 5.4 / 14.50 |
| 125 NB (5″) | 139.7 | — | 4.8 / 15.97 | 5.4 / 17.88 |
| 150 NB (6″) | 165.1 | — | 4.8 / 18.97 | 5.4 / 21.27 |
Plain-end black pipe weights calculated from IS 1239 outside diameter and wall thickness. Galvanized pipe weighs slightly more; screwed & socketed ends change weight per length.
How to use this chart. Multiply kg/m by the length and number of pieces to estimate weight. Steel is usually billed by weight — agree whether billing is on actual (weighbridge) or theoretical weight before ordering.
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