Steel Section Catalog
ISMC 300
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 300 (UK / Australia)
The ISMC 300 steel profile weighs 36.3 kg/m (24.39 lb/ft), has a depth of 300 mm (11.81 in), flange width 90 mm (3.54 in). Cross-sectional area: 3,561.5 mm². Moment of inertia Ix = 4,359.43 cm⁴, Iy = 211.98 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 300 mm | 11.81 in |
| Width (b) | 90 mm | 3.54 in |
| Web thickness (tw) | 7.8 mm | 0.31 in |
| Flange thickness (tf) | 13.6 mm | 0.54 in |
| Thickness (t) | 7.8 mm | 0.31 in |
| Fillet radius (r) | 13 mm | 0.51 in |
| Weight | 36.3 kg/m | 24.39 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 3,561.5 mm² | 5.520 in² |
| Moment of inertia (Ix) | 4,359.43 cm⁴ | 104.74 in⁴ |
| Moment of inertia (Iy) | 211.98 cm⁴ | 5.09 in⁴ |
| Elastic section modulus (Sx) | 290.63 cm³ | 17.735 in³ |
| Elastic section modulus (Sy) | 28.19 cm³ | 1.720 in³ |
| Plastic section modulus (Zx) | 334.22 cm³ | 20.395 in³ |
| Plastic section modulus (Zy) | 33.83 cm³ | 2.064 in³ |
| Radius of gyration (rx) | 11.06 cm | 4.354 in |
| Radius of gyration (ry) | 2.44 cm | 0.961 in |
Beam Calculator— ISMC 300
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mfixed @ 0mfixed @ 6m→kN/m
Results — ISMC 300
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
1.94 mm
L/3100
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
