Steel Section Catalog
C 100x40x15x3.05
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 100x40x15x3.05 steel profile weighs 6.5 kg/m (4.34 lb/ft), has a depth of 100 mm (3.94 in), flange width 40 mm (1.57 in). Cross-sectional area: 603.3 mm². Moment of inertia Ix = 90.59 cm⁴, Iy = 12.91 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 3.05 mm ≈ 11 gauge (Manufacturers Standard Gage)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 100 mm | 3.94 in |
| Width (b) | 40 mm | 1.57 in |
| Thickness (t) | 3.0 mm | 0.12 in |
| Lip | 15 mm | 0.59 in |
| Weight | 6.5 kg/m | 4.34 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 603.3 mm² | 0.935 in² |
| Moment of inertia (Ix) | 90.59 cm⁴ | 2.18 in⁴ |
| Moment of inertia (Iy) | 12.91 cm⁴ | 0.31 in⁴ |
| Elastic section modulus (Sx) | 18.12 cm³ | 1.106 in³ |
| Elastic section modulus (Sy) | 4.6 cm³ | 0.281 in³ |
| Plastic section modulus (Zx) | 20.83 cm³ | 1.271 in³ |
| Plastic section modulus (Zy) | 5.52 cm³ | 0.337 in³ |
| Radius of gyration (rx) | 3.87 cm | 1.524 in |
| Radius of gyration (ry) | 1.46 cm | 0.575 in |
Beam Calculator— C 100x40x15x3.05
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mfixed @ 0mfixed @ 6m→kN/m
Results — C 100x40x15x3.05
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
93.14 mm
L/64
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
