Steel Section Catalog
ISMC 75
IS — Cold-formed Channel
Cold-formed channels (U shapes) are similar to C shapes but without stiffening lips. Used for light structural framing, supports, and secondary members.
Also known as: ISMC 75 (UK / Australia)
The ISMC 75 steel profile weighs 7.1 kg/m (4.80 lb/ft), has a depth of 75 mm (2.95 in), flange width 40 mm (1.57 in). Cross-sectional area: 674.9 mm². Moment of inertia Ix = 55.53 cm⁴, Iy = 8.78 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 75 mm | 2.95 in |
| Width (b) | 40 mm | 1.57 in |
| Web thickness (tw) | 4.8 mm | 0.19 in |
| Flange thickness (tf) | 7.5 mm | 0.30 in |
| Thickness (t) | 4.8 mm | 0.19 in |
| Fillet radius (r) | 8 mm | 0.31 in |
| Weight | 7.1 kg/m | 4.80 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 674.9 mm² | 1.046 in² |
| Moment of inertia (Ix) | 55.53 cm⁴ | 1.33 in⁴ |
| Moment of inertia (Iy) | 8.78 cm⁴ | 0.21 in⁴ |
| Elastic section modulus (Sx) | 14.81 cm³ | 0.904 in³ |
| Elastic section modulus (Sy) | 2.82 cm³ | 0.172 in³ |
| Plastic section modulus (Zx) | 17.03 cm³ | 1.039 in³ |
| Plastic section modulus (Zy) | 3.38 cm³ | 0.206 in³ |
| Radius of gyration (rx) | 2.87 cm | 1.130 in |
| Radius of gyration (ry) | 1.14 cm | 0.449 in |
Beam Calculator— ISMC 75
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mfixed @ 0mfixed @ 6m→kN/m
Results — ISMC 75
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
151.94 mm
L/39
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
