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 steel profile weighs 9.8 kg/m (6.59 lb/ft), has a depth of 250 mm (9.84 in), flange width 75 mm (2.95 in). Cross-sectional area: 1,260.789 mm². Moment of inertia Ix = 1,145.034 cm⁴, Iy = 85.212 cm⁴.
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 250 mm | 9.84 in |
| Width (b) | 75 mm | 2.95 in |
| Thickness (t) | 3 mm | 0.12 in |
| Lip | 20 mm | 0.79 in |
| Weight | 9.8 kg/m | 6.59 lb/ft |
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 1,260.79 mm² | 1.954 in² |
| Moment of inertia (Ix) | 1,145.03 cm⁴ | 27.51 in⁴ |
| Moment of inertia (Iy) | 85.21 cm⁴ | 2.05 in⁴ |
| Elastic section modulus (Sx) | 91.6 cm³ | 5.590 in³ |
| Elastic section modulus (Sy) | 15.36 cm³ | 0.937 in³ |
| Plastic section modulus (Zx) | 111.79 cm³ | 6.822 in³ |
| Plastic section modulus (Zy) | 21.45 cm³ | 1.309 in³ |
| Radius of gyration (rx) | 9.53 cm | 3.752 in |
| Radius of gyration (ry) | 2.6 cm | 1.024 in |
15.0 kN·m
15.0 kN
7.37 mm
L/814