IMCA, cold-formed sections · 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 177.8x69.9x15.2x1.52 steel profile weighs 4.0 kg/m (2.69 lb/ft), has a depth of 177.8 mm (7.00 in), flange width 69.9 mm (2.75 in). Cross-sectional area: 511.46 mm². Moment of inertia Ix = 253.21 cm⁴, Iy = 32.091 cm⁴.
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 177.8 mm | 7.00 in |
| Width (b) | 69.9 mm | 2.75 in |
| Thickness (t) | 1.5 mm | 0.06 in |
| Lip | 15.2 mm | 0.60 in |
| Fillet radius (r) | 2.4 mm | 0.09 in |
| Weight | 4.0 kg/m | 2.69 lb/ft |
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 511.46 mm² | 0.793 in² |
| Moment of inertia (Ix) | 253.21 cm⁴ | 6.08 in⁴ |
| Moment of inertia (Iy) | 32.09 cm⁴ | 0.77 in⁴ |
| Elastic section modulus (Sx) | 28.48 cm³ | 1.738 in³ |
| Elastic section modulus (Sy) | 6.43 cm³ | 0.392 in³ |
| Plastic section modulus (Zx) | 33.68 cm³ | 2.055 in³ |
| Plastic section modulus (Zy) | 8.8 cm³ | 0.537 in³ |
| Radius of gyration (rx) | 7.04 cm | 2.770 in |
| Radius of gyration (ry) | 2.5 cm | 0.986 in |
15.0 kN·m
15.0 kN
33.32 mm
L/180