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 150x50x17x2.25 steel profile weighs 6.8 kg/m (4.56 lb/ft), has a depth of 150 mm (5.91 in), flange width 50 mm (1.97 in). Cross-sectional area: 618.8 mm². Moment of inertia Ix = 208.96 cm⁴, Iy = 20.85 cm⁴.
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 150 mm | 5.91 in |
| Width (b) | 50 mm | 1.97 in |
| Thickness (t) | 2.3 mm | 0.09 in |
| Lip | 17 mm | 0.67 in |
| Weight | 6.8 kg/m | 4.56 lb/ft |
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 618.8 mm² | 0.959 in² |
| Moment of inertia (Ix) | 208.96 cm⁴ | 5.02 in⁴ |
| Moment of inertia (Iy) | 20.85 cm⁴ | 0.50 in⁴ |
| Elastic section modulus (Sx) | 27.86 cm³ | 1.700 in³ |
| Elastic section modulus (Sy) | 5.76 cm³ | 0.351 in³ |
| Plastic section modulus (Zx) | 32.04 cm³ | 1.955 in³ |
| Plastic section modulus (Zy) | 6.91 cm³ | 0.422 in³ |
| Radius of gyration (rx) | 5.81 cm | 2.287 in |
| Radius of gyration (ry) | 1.84 cm | 0.724 in |
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15.0 kN·m
15.0 kN
40.38 mm
L/149