Steel Section Catalog
C 100x40x15x4.25
BR — 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 100x40x15x4.25 steel profile weighs 9.0 kg/m (6.05 lb/ft), has a depth of 100 mm (3.94 in), flange width 40 mm (1.57 in). Cross-sectional area: 820.3 mm². Moment of inertia Ix = 119.73 cm⁴, Iy = 16.37 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 4.25 mm ≈ 8 gauge (Manufacturers Standard Gage)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 100 mm | 3.94 in |
| Width (b) | 40 mm | 1.57 in |
| Thickness (t) | 4.3 mm | 0.17 in |
| Lip | 15 mm | 0.59 in |
| Weight | 9.0 kg/m | 6.05 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 820.3 mm² | 1.271 in² |
| Moment of inertia (Ix) | 119.73 cm⁴ | 2.88 in⁴ |
| Moment of inertia (Iy) | 16.37 cm⁴ | 0.39 in⁴ |
| Elastic section modulus (Sx) | 23.95 cm³ | 1.462 in³ |
| Elastic section modulus (Sy) | 5.72 cm³ | 0.349 in³ |
| Plastic section modulus (Zx) | 27.54 cm³ | 1.681 in³ |
| Plastic section modulus (Zy) | 6.86 cm³ | 0.419 in³ |
| Radius of gyration (rx) | 3.82 cm | 1.504 in |
| Radius of gyration (ry) | 1.41 cm | 0.555 in |
Beam Calculator— C 100x40x15x4.25
3D preview unavailable
Your device does not support WebGL. The 2D diagram below is still fully functional.
mfixed @ 0mfixed @ 6m→kN/m
Results — C 100x40x15x4.25
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
70.47 mm
L/85
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
