Steel Section Catalog
U 250x100x4.75
BR — 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: U 250x100x4.75 (UK / Australia)
The U 250x100x4.75 steel profile weighs 16.1 kg/m (10.83 lb/ft), has a depth of 250 mm (9.84 in), flange width 100 mm (3.94 in). Cross-sectional area: 2,069.8 mm². Moment of inertia Ix = 1,944.72 cm⁴, Iy = 184.14 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 4.75 mm ≈ 7 gauge (Manufacturers Standard Gage)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 250 mm | 9.84 in |
| Width (b) | 100 mm | 3.94 in |
| Thickness (t) | 4.8 mm | 0.19 in |
| Weight | 16.1 kg/m | 10.83 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 2,069.8 mm² | 3.208 in² |
| Moment of inertia (Ix) | 1,944.72 cm⁴ | 46.72 in⁴ |
| Moment of inertia (Iy) | 184.14 cm⁴ | 4.42 in⁴ |
| Elastic section modulus (Sx) | 155.58 cm³ | 9.494 in³ |
| Elastic section modulus (Sy) | 23.26 cm³ | 1.419 in³ |
| Plastic section modulus (Zx) | 178.91 cm³ | 10.918 in³ |
| Plastic section modulus (Zy) | 27.91 cm³ | 1.703 in³ |
| Radius of gyration (rx) | 9.69 cm | 3.815 in |
| Radius of gyration (ry) | 2.98 cm | 1.173 in |
Beam Calculator— U 250x100x4.75
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mfixed @ 0mfixed @ 6m→kN/m
Results — U 250x100x4.75
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
4.34 mm
L/1383
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
