Steel Section Catalog
U 75x40x2.66
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 75x40x2.66 (UK / Australia)
The U 75x40x2.66 steel profile weighs 3.0 kg/m (2.04 lb/ft), has a depth of 75 mm (2.95 in), flange width 40 mm (1.57 in). Cross-sectional area: 391.1 mm². Moment of inertia Ix = 34.39 cm⁴, Iy = 5.73 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 2.66 mm ≈ 12 gauge (Manufacturers Standard Gage)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 75 mm | 2.95 in |
| Width (b) | 40 mm | 1.57 in |
| Thickness (t) | 2.7 mm | 0.10 in |
| Weight | 3.0 kg/m | 2.04 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 391.1 mm² | 0.606 in² |
| Moment of inertia (Ix) | 34.39 cm⁴ | 0.83 in⁴ |
| Moment of inertia (Iy) | 5.73 cm⁴ | 0.14 in⁴ |
| Elastic section modulus (Sx) | 9.17 cm³ | 0.560 in³ |
| Elastic section modulus (Sy) | 1.88 cm³ | 0.115 in³ |
| Plastic section modulus (Zx) | 10.55 cm³ | 0.644 in³ |
| Plastic section modulus (Zy) | 2.25 cm³ | 0.137 in³ |
| Radius of gyration (rx) | 2.97 cm | 1.169 in |
| Radius of gyration (ry) | 1.21 cm | 0.476 in |
Beam Calculator— U 75x40x2.66
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mfixed @ 0mfixed @ 6m→kN/m
Results — U 75x40x2.66
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
245.35 mm
L/24
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
