BR — Cold-formed Lipped Channel
Cold-formed lipped channels (C shapes) are lightweight profiles commonly used as purlins, girts, and light framing members. The stiffening lips increase local buckling resistance. Designed per AISI S100 and NBR 14762.
The C 50x25x10x1.5 steel profile weighs 1.3 kg/m (0.87 lb/ft), has a depth of 50 mm (1.97 in), flange width 25 mm (0.98 in). Cross-sectional area: 171 mm². Moment of inertia Ix = 6.66 cm⁴, Iy = 1.55 cm⁴.
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 50 mm | 1.97 in |
| Width (b) | 25 mm | 0.98 in |
| Thickness (t) | 1.5 mm | 0.06 in |
| Lip | 10 mm | 0.39 in |
| Weight | 1.3 kg/m | 0.87 lb/ft |
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 171 mm² | 0.265 in² |
| Moment of inertia (Ix) | 6.66 cm⁴ | 0.16 in⁴ |
| Moment of inertia (Iy) | 1.55 cm⁴ | 0.04 in⁴ |
| Elastic section modulus (Sx) | 2.66 cm³ | 0.162 in³ |
| Elastic section modulus (Sy) | 0.95 cm³ | 0.058 in³ |
| Plastic section modulus (Zx) | 3.06 cm³ | 0.187 in³ |
| Plastic section modulus (Zy) | 1.14 cm³ | 0.070 in³ |
| Radius of gyration (rx) | 1.97 cm | 0.776 in |
| Radius of gyration (ry) | 0.95 cm | 0.374 in |
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15.0 kN·m
15.0 kN
1266.89 mm
L/5