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 100x50x15x3.35 steel profile weighs 7.4 kg/m (4.95 lb/ft), has a depth of 100 mm (3.94 in), flange width 50 mm (1.97 in). Cross-sectional area: 725.6 mm². Moment of inertia Ix = 113.85 cm⁴, Iy = 24.06 cm⁴.
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 100 mm | 3.94 in |
| Width (b) | 50 mm | 1.97 in |
| Thickness (t) | 3.4 mm | 0.13 in |
| Lip | 15 mm | 0.59 in |
| Weight | 7.4 kg/m | 4.95 lb/ft |
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 725.6 mm² | 1.125 in² |
| Moment of inertia (Ix) | 113.85 cm⁴ | 2.74 in⁴ |
| Moment of inertia (Iy) | 24.06 cm⁴ | 0.58 in⁴ |
| Elastic section modulus (Sx) | 22.77 cm³ | 1.390 in³ |
| Elastic section modulus (Sy) | 7.03 cm³ | 0.429 in³ |
| Plastic section modulus (Zx) | 26.19 cm³ | 1.598 in³ |
| Plastic section modulus (Zy) | 8.44 cm³ | 0.515 in³ |
| Radius of gyration (rx) | 3.96 cm | 1.559 in |
| Radius of gyration (ry) | 1.82 cm | 0.717 in |
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15.0 kN·m
15.0 kN
74.11 mm
L/81