Steel Section Catalog
U 127x50x4.25
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.
The U 127x50x4.25 steel profile weighs 10.1 kg/m (6.82 lb/ft), has a depth of 127 mm (5.00 in), flange width 50 mm (1.97 in). Cross-sectional area: 910.6 mm². Moment of inertia Ix = 212.05 cm⁴, Iy = 18.52 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 4.25 mm ≈ 8 gauge (Manufacturers Standard Gage)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 127 mm | 5.00 in |
| Width (b) | 50 mm | 1.97 in |
| Thickness (t) | 4.3 mm | 0.17 in |
| Weight | 10.1 kg/m | 6.82 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 910.6 mm² | 1.411 in² |
| Moment of inertia (Ix) | 212.05 cm⁴ | 5.09 in⁴ |
| Moment of inertia (Iy) | 18.52 cm⁴ | 0.44 in⁴ |
| Elastic section modulus (Sx) | 33.39 cm³ | 2.038 in³ |
| Elastic section modulus (Sy) | 4.6 cm³ | 0.281 in³ |
| Plastic section modulus (Zx) | 38.4 cm³ | 2.343 in³ |
| Plastic section modulus (Zy) | 5.52 cm³ | 0.337 in³ |
| Radius of gyration (rx) | 4.83 cm | 1.902 in |
| Radius of gyration (ry) | 1.43 cm | 0.563 in |
Beam Calculator— U 127x50x4.25
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mfixed @ 0mfixed @ 6m→kN/m
Results — U 127x50x4.25
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
39.79 mm
L/151
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
