Steel Section Catalog
U 75x40x2.25
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 75x40x2.25 (UK / Australia)
The U 75x40x2.25 steel profile weighs 2.6 kg/m (1.74 lb/ft), has a depth of 75 mm (2.95 in), flange width 40 mm (1.57 in). Cross-sectional area: 333.6 mm². Moment of inertia Ix = 29.7 cm⁴, Iy = 4.99 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 2.25 mm ≈ 13 gauge (Manufacturers Standard Gage)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 75 mm | 2.95 in |
| Width (b) | 40 mm | 1.57 in |
| Thickness (t) | 2.3 mm | 0.09 in |
| Weight | 2.6 kg/m | 1.74 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 333.6 mm² | 0.517 in² |
| Moment of inertia (Ix) | 29.7 cm⁴ | 0.71 in⁴ |
| Moment of inertia (Iy) | 4.99 cm⁴ | 0.12 in⁴ |
| Elastic section modulus (Sx) | 7.92 cm³ | 0.483 in³ |
| Elastic section modulus (Sy) | 1.64 cm³ | 0.100 in³ |
| Plastic section modulus (Zx) | 9.11 cm³ | 0.556 in³ |
| Plastic section modulus (Zy) | 1.97 cm³ | 0.120 in³ |
| Radius of gyration (rx) | 2.98 cm | 1.173 in |
| Radius of gyration (ry) | 1.22 cm | 0.480 in |
Beam Calculator— U 75x40x2.25
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mfixed @ 0mfixed @ 6m→kN/m
Results — U 75x40x2.25
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
284.09 mm
L/21
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
