Steel Section Catalog
U 75x40x2
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 (UK / Australia)
The U 75x40x2 steel profile weighs 2.3 kg/m (1.55 lb/ft), has a depth of 75 mm (2.95 in), flange width 40 mm (1.57 in). Cross-sectional area: 298 mm². Moment of inertia Ix = 26.74 cm⁴, Iy = 4.52 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 2 mm ≈ 14 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 mm | 0.08 in |
| Weight | 2.3 kg/m | 1.55 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 298 mm² | 0.462 in² |
| Moment of inertia (Ix) | 26.74 cm⁴ | 0.64 in⁴ |
| Moment of inertia (Iy) | 4.52 cm⁴ | 0.11 in⁴ |
| Elastic section modulus (Sx) | 7.13 cm³ | 0.435 in³ |
| Elastic section modulus (Sy) | 1.49 cm³ | 0.091 in³ |
| Plastic section modulus (Zx) | 8.2 cm³ | 0.500 in³ |
| Plastic section modulus (Zy) | 1.79 cm³ | 0.109 in³ |
| Radius of gyration (rx) | 3 cm | 1.181 in |
| Radius of gyration (ry) | 1.23 cm | 0.484 in |
Beam Calculator— U 75x40x2
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mfixed @ 0mfixed @ 6m→kN/m
Results — U 75x40x2
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
315.54 mm
L/19
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
