Stacked MS C-channel steel sections, related to MS channel weight chart formula.
MS Channel Weight Chart (kg/m): C-Channel Formula & Guide
MS channel (C-channel or U-channel) weight per metre is what converts a size specification into a real procurement number — for billing, transport planning, and BOQ accuracy. Fabricators use kg/m to estimate cutting, handling, welding, and total steel consumption before work starts.
The Formula
Weight (kg/m) = Cross-sectional Area (mm²) × 0.00785
Worked example for a 100×50×5mm channel: Area = 950mm² → Weight = 950 × 0.00785 = 7.4575 kg/m. For standard ISMC 75 (a commonly stocked size): 7.14 kg/m.
Total Weight (kg) = kg/m × total length in metres. Example: a channel at 11.7 kg/m for 48 metres required = 11.7 × 48 = 561.6 kg.
Common Channel Sizes & Applications
| Size (H×B×t mm) | Typical Use |
|---|---|
| 50×25×4 | Racks, small frames |
| 75×40×4 | Light structural supports |
| 75 (ISMC)×40×6 | Heavier fabrication — ISMC 75 ≈ 7.14 kg/m |
| 100×50×5 | Frames, trusses — ≈ 7.46 kg/m (worked example above) |
| 100×50×6 | Common structural work |
| 125×65×6 | Industrial supports |
| 150×75×6 | Heavier frames |
| 200×75×6 | High load members |
Weight values shown are verified via the formula above for the two examples given; for other sizes, confirm exact kg/m from the IS 808 section table or our calculator before finalising an order — reference values are theoretical estimates and actual supplied weight may vary slightly by mill and tolerance.
How Builders Use This Chart
Contractors and fabricators check channel weight before ordering, especially on jobs involving multiple sizes — it lets procurement convert a cutting list into total tonnage for accurate quotation and freight planning, rather than discovering the correct total only at delivery. Steel rates change daily, but a section's kg/m stays the fixed reference point for every calculation.
Frequently Asked Questions
What is the formula for MS channel weight per metre?
Weight (kg/m) = cross-sectional area (mm²) × 0.00785. For example, a 100×50×5mm channel works out to approximately 7.46 kg/m.
How do I calculate total channel weight for an order?
Multiply kg/m by the total length required in metres.
What is ISMC 75's standard weight?
Approximately 7.14 kg/m — a commonly stocked and referenced channel size.
Why does channel weight matter beyond billing?
It drives transport load planning and cutting/handling estimates in fabrication — getting it wrong causes both budget and logistics surprises.
Does actual channel weight always match the calculated value?
Approximately, but mill tolerance and section profile cause small variations — verify with the Mill Test Certificate for critical or billing-sensitive orders.
Share size, length, and quantity — Vishwageeta Ispat will confirm kg/m and a mill-linked quote.
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