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 250x75x20x3.5 steel profile weighs 11.4 kg/m (7.65 lb/ft), has a depth of 250 mm (9.84 in), flange width 75 mm (2.95 in). Cross-sectional area: 1,459.407 mm². Moment of inertia Ix = 1,315.264 cm⁴, Iy = 96.468 cm⁴.
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 250 mm | 9.84 in |
| Width (b) | 75 mm | 2.95 in |
| Thickness (t) | 3.5 mm | 0.14 in |
| Lip | 20 mm | 0.79 in |
| Weight | 11.4 kg/m | 7.65 lb/ft |
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 1,459.41 mm² | 2.262 in² |
| Moment of inertia (Ix) | 1,315.26 cm⁴ | 31.60 in⁴ |
| Moment of inertia (Iy) | 96.47 cm⁴ | 2.32 in⁴ |
| Elastic section modulus (Sx) | 105.22 cm³ | 6.421 in³ |
| Elastic section modulus (Sy) | 17.38 cm³ | 1.061 in³ |
| Plastic section modulus (Zx) | 129.43 cm³ | 7.899 in³ |
| Plastic section modulus (Zy) | 24.6 cm³ | 1.501 in³ |
| Radius of gyration (rx) | 9.49 cm | 3.738 in |
| Radius of gyration (ry) | 2.57 cm | 1.012 in |
15.0 kN·m
15.0 kN
6.42 mm
L/935