Steel sections feel “simple” until they start deciding how many rupees leave the budget. ISMC 75 is a common channel used in framing, bracing, roof purlins, platforms, and day-to-day fabrication. The important part is not just the shape — it’s the kg per meter that quietly controls billing, transport, and handling.
In ISMC naming, “75” is the nominal depth in millimeters, and ISMC refers to an Indian Standard Medium Weight Channel profile. Because steel is billed in kg/ton, one small misunderstanding in weight-per-meter becomes a big surprise when multiplied over long lengths.
ISMC stands for Indian Standard Medium Weight Channel, a common steel channel family used across construction and fabrication. The number 75 indicates the nominal depth (mm). In the market, people often say “ISMC 75 channel” or simply “75 channel.”
This guide keeps things simple: once you know the kg/m, you can estimate total weight for any BOQ, transport plan, and site handling requirement.
Enter total length (meters) or number of standard lengths. This calculator uses the standard ISMC 75 weight:
7.14 kg/m.
Use this table for quick checks during BOQ planning, purchase orders, dispatch verification, and invoice matching.
| Section | Standard Weight (kg/m) | Weight (kg/6m) | Weight (kg/12m) | Common Use Notes |
|---|---|---|---|---|
| ISMC 75 | 7.14 | 42.84 | 85.68 | Roof purlins, frames, racks, platforms, supports |
Total kg = 7.14 × total meters.
Once you do this, budgeting and transport planning becomes straightforward.
A channel section doesn’t “look expensive,” but the invoice is always weight-based. That’s why project teams keep coming back to weight-per-meter — it directly impacts:
If you’re validating a quote or comparing tables, these common section figures help ensure everyone is talking about the same profile.
| Parameter | Value | Why it matters |
|---|---|---|
| Depth (mm) | 75 | Nominal height of the channel |
| Flange width (mm) | 40 | Controls seating / connection width |
| Flange thickness (mm) | 7.5 | Affects stiffness and connection strength |
| Web thickness (mm) | 4.8 | Major factor in total weight and shear capacity |
| Sectional area (cm²) | 9.1 | Directly relates to mass per meter |
Standards exist so buyers, engineers and suppliers speak the same language. But in real production, small variations can occur due to rolling tolerance and mill practice. That’s why weight tables should be used for estimation — and large orders should still be verified at dispatch/receipt.
7.14 kg/m.Standard ISMC 75 weight is 7.14 kg per meter. Use this to estimate total kg for BOQ, purchase, and transport planning.
Approximately 42.84 kg (because 7.14 × 6 = 42.84).
Approximately 85.68 kg (because 7.14 × 12 = 85.68).
Small differences can happen due to rolling tolerances and manufacturing variation. Use the table for estimation, and verify invoice kg and received weight for large orders.
No. It also affects transport load planning, unloading manpower, and often signals whether the section matches the intended specification.
Share length (6m/12m), total meters, and quantity. We’ll respond with a clean quote and weight estimate.