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IS 1239 Weight Chart
32 mm (1¼ inch) Pipe Weight per Meter
Class B Medium = 3.09 kg/m · OD 42.4 mm · Light 2.55 / Heavy 3.79 kg/m
32 mm (1¼ inch) MS Pipe Weight — IS 1239 Class A / B / C
A 32 NB (1¼ inch) MS pipe weighs 3.09 kg per metre in Class B (Medium) — 2.55 kg/m in Class A and 3.79 kg/m in Class C per IS 1239.
Outside diameter is 42.4 mm. Figures below are theoretical plain-end weights. Compare all sizes on the full pipe weight chart.
32 NB weight by class
| Class | Wall (mm) | kg/m | kg per 6 m | Approx. pieces / tonne |
|---|---|---|---|---|
| Class A (Light) | 2.6 | 2.55 | 15.3 | 65 |
| Class B (Medium) | 3.2 | 3.09 | 18.5 | 54 |
| Class C (Heavy) | 4 | 3.79 | 22.7 | 44 |
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 32 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 32 NB dimensions
W = (OD − WT) × WT × 0.02466, with OD = 42.4 mm for this size:
- Class A: (42.4 − 2.6) × 2.6 × 0.02466 = 2.55 kg/m
- Class B: (42.4 − 3.2) × 3.2 × 0.02466 = 3.09 kg/m
- Class C: (42.4 − 4) × 4 × 0.02466 = 3.79 kg/m
Ordering this size
For wholesale supply of 32 NB (1¼ 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 32 NB pipe in bulk?
Quote Class A/B/C, length and quantity — wholesale reply from RP Sales, Kanpur.
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