SAISC, 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 275x65x20x2 steel profile weighs 6.8 kg/m (4.54 lb/ft), has a depth of 275 mm (10.83 in), flange width 65 mm (2.56 in). Cross-sectional area: 863.684 mm². Moment of inertia Ix = 912.095 cm⁴, Iy = 43.639 cm⁴.
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 275 mm | 10.83 in |
| Width (b) | 65 mm | 2.56 in |
| Thickness (t) | 2 mm | 0.08 in |
| Lip | 20 mm | 0.79 in |
| Weight | 6.8 kg/m | 4.54 lb/ft |
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 863.68 mm² | 1.339 in² |
| Moment of inertia (Ix) | 912.1 cm⁴ | 21.91 in⁴ |
| Moment of inertia (Iy) | 43.64 cm⁴ | 1.05 in⁴ |
| Elastic section modulus (Sx) | 66.33 cm³ | 4.048 in³ |
| Elastic section modulus (Sy) | 8.79 cm³ | 0.536 in³ |
| Plastic section modulus (Zx) | 81.31 cm³ | 4.962 in³ |
| Plastic section modulus (Zy) | 12.03 cm³ | 0.734 in³ |
| Radius of gyration (rx) | 10.28 cm | 4.046 in |
| Radius of gyration (ry) | 2.25 cm | 0.885 in |
15.0 kN·m
15.0 kN
9.25 mm
L/649