Steel Section Catalog
U 100x50x2.25
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 100x50x2.25 (UK / Australia)
The U 100x50x2.25 steel profile weighs 3.4 kg/m (2.27 lb/ft), has a depth of 100 mm (3.94 in), flange width 50 mm (1.97 in). Cross-sectional area: 434.8 mm². Moment of inertia Ix = 68.85 cm⁴, Iy = 10.29 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 2.25 mm ≈ 13 gauge (Manufacturers Standard Gage)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 100 mm | 3.94 in |
| Width (b) | 50 mm | 1.97 in |
| Thickness (t) | 2.3 mm | 0.09 in |
| Weight | 3.4 kg/m | 2.27 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 434.8 mm² | 0.674 in² |
| Moment of inertia (Ix) | 68.85 cm⁴ | 1.65 in⁴ |
| Moment of inertia (Iy) | 10.29 cm⁴ | 0.25 in⁴ |
| Elastic section modulus (Sx) | 13.77 cm³ | 0.840 in³ |
| Elastic section modulus (Sy) | 2.69 cm³ | 0.164 in³ |
| Plastic section modulus (Zx) | 15.84 cm³ | 0.967 in³ |
| Plastic section modulus (Zy) | 3.23 cm³ | 0.197 in³ |
| Radius of gyration (rx) | 3.98 cm | 1.567 in |
| Radius of gyration (ry) | 1.54 cm | 0.606 in |
Beam Calculator— U 100x50x2.25
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mfixed @ 0mfixed @ 6m→kN/m
Results — U 100x50x2.25
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
122.55 mm
L/49
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
