Steel Section Catalog
U 300x100x6.3
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 300x100x6.3 (UK / Australia)
The U 300x100x6.3 steel profile weighs 23.6 kg/m (15.83 lb/ft), has a depth of 300 mm (11.81 in), flange width 100 mm (3.94 in). Cross-sectional area: 3,030.9 mm². Moment of inertia Ix = 3,876.45 cm⁴, Iy = 245.19 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 6.3 mm ≈ 3 gauge (Manufacturers Standard Gage)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 300 mm | 11.81 in |
| Width (b) | 100 mm | 3.94 in |
| Thickness (t) | 6.3 mm | 0.25 in |
| Weight | 23.6 kg/m | 15.83 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 3,030.9 mm² | 4.698 in² |
| Moment of inertia (Ix) | 3,876.45 cm⁴ | 93.13 in⁴ |
| Moment of inertia (Iy) | 245.19 cm⁴ | 5.89 in⁴ |
| Elastic section modulus (Sx) | 258.43 cm³ | 15.770 in³ |
| Elastic section modulus (Sy) | 29.99 cm³ | 1.830 in³ |
| Plastic section modulus (Zx) | 297.19 cm³ | 18.136 in³ |
| Plastic section modulus (Zy) | 35.99 cm³ | 2.196 in³ |
| Radius of gyration (rx) | 11.31 cm | 4.453 in |
| Radius of gyration (ry) | 2.84 cm | 1.118 in |
Beam Calculator— U 300x100x6.3
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mfixed @ 0mfixed @ 6m→kN/m
Results — U 300x100x6.3
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
2.18 mm
L/2757
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
