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IS 1239 Weight Chart
100 mm (4 inch) Pipe Weight per Meter
Class B Medium = 12.18 kg/m · OD 114.3 mm · Light 9.83 / Heavy 14.50 kg/m
100 mm (4 inch) MS Pipe Weight — IS 1239 Class A / B / C
A 100 NB (4 inch) MS pipe weighs 12.18 kg per metre in Class B (Medium) — 9.83 kg/m in Class A and 14.50 kg/m in Class C per IS 1239.
Outside diameter is 114.3 mm. Figures below are theoretical plain-end weights. Compare all sizes on the full pipe weight chart.
100 NB weight by class
| Class | Wall (mm) | kg/m | kg per 6 m | Approx. pieces / tonne |
|---|---|---|---|---|
| Class A (Light) | 3.6 | 9.83 | 59.0 | 16 |
| Class B (Medium) | 4.5 | 12.18 | 73.1 | 13 |
| Class C (Heavy) | 5.4 | 14.50 | 87.0 | 11 |
Pieces per tonne ≈ round(1000 ÷ kg per 6 m length). Use for rough logistics only; actual count depends on exact length and mill mass.
GI pipe weight note for 100 NB
Galvanized (GI) pipe is MS pipe with a zinc coating. Zinc typically adds roughly 3–6% mass over the plain-end MS weight depending on coating class and surface area. Use the MS figures below as the base; for GI orders expect a small uplift, or confirm coated mass on the mill test certificate (MTC).
Formula with 100 NB dimensions
W = (OD − WT) × WT × 0.02466, with OD = 114.3 mm for this size:
- Class A: (114.3 − 3.6) × 3.6 × 0.02466 = 9.83 kg/m
- Class B: (114.3 − 4.5) × 4.5 × 0.02466 = 12.18 kg/m
- Class C: (114.3 − 5.4) × 5.4 × 0.02466 = 14.50 kg/m
Ordering this size
For wholesale supply of 100 NB (4 inch) MS or GI pipe from Kanpur, check the MS pipe price list for current rate bands, then send NB, class (A/B/C), length and tonnage via the RFQ form. We supply with mill test certificates. Thickness class reference: IS 1239 class thickness chart.
Frequently Asked Questions
Need 100 NB pipe in bulk?
Quote Class A/B/C, length and quantity — wholesale reply from RP Sales, Kanpur.
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