IAS, 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 125x75x15x4 steel profile weighs 8.8 kg/m (5.88 lb/ft), has a depth of 125 mm (4.92 in), flange width 75 mm (2.95 in). Cross-sectional area: 1,114.736 mm². Moment of inertia Ix = 281.897 cm⁴, Iy = 76.22 cm⁴.
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 125 mm | 4.92 in |
| Width (b) | 75 mm | 2.95 in |
| Thickness (t) | 4 mm | 0.16 in |
| Lip | 15 mm | 0.59 in |
| Fillet radius (r) | 4 mm | 0.16 in |
| Weight | 8.8 kg/m | 5.88 lb/ft |
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 1,114.74 mm² | 1.728 in² |
| Moment of inertia (Ix) | 281.9 cm⁴ | 6.77 in⁴ |
| Moment of inertia (Iy) | 76.22 cm⁴ | 1.83 in⁴ |
| Elastic section modulus (Sx) | 45.1 cm³ | 2.752 in³ |
| Elastic section modulus (Sy) | 15.37 cm³ | 0.938 in³ |
| Plastic section modulus (Zx) | 54.62 cm³ | 3.333 in³ |
| Plastic section modulus (Zy) | 22.48 cm³ | 1.372 in³ |
| Radius of gyration (rx) | 5.03 cm | 1.980 in |
| Radius of gyration (ry) | 2.61 cm | 1.029 in |
15.0 kN·m
15.0 kN
29.93 mm
L/200