Steel Section Catalog
C 75x40x15x2.66
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 75x40x15x2.66 steel profile weighs 4.6 kg/m (3.09 lb/ft), has a depth of 75 mm (2.95 in), flange width 40 mm (1.57 in). Cross-sectional area: 463.8 mm². Moment of inertia Ix = 40.76 cm⁴, Iy = 10.49 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 2.66 mm ≈ 12 gauge (Manufacturers Standard Gage)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 75 mm | 2.95 in |
| Width (b) | 40 mm | 1.57 in |
| Thickness (t) | 2.7 mm | 0.10 in |
| Lip | 15 mm | 0.59 in |
| Weight | 4.6 kg/m | 3.09 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 463.8 mm² | 0.719 in² |
| Moment of inertia (Ix) | 40.76 cm⁴ | 0.98 in⁴ |
| Moment of inertia (Iy) | 10.49 cm⁴ | 0.25 in⁴ |
| Elastic section modulus (Sx) | 10.87 cm³ | 0.663 in³ |
| Elastic section modulus (Sy) | 4.01 cm³ | 0.245 in³ |
| Plastic section modulus (Zx) | 12.5 cm³ | 0.763 in³ |
| Plastic section modulus (Zy) | 4.81 cm³ | 0.294 in³ |
| Radius of gyration (rx) | 2.96 cm | 1.165 in |
| Radius of gyration (ry) | 1.5 cm | 0.591 in |
Beam Calculator— C 75x40x15x2.66
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mfixed @ 0mfixed @ 6m→kN/m
Results — C 75x40x15x2.66
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
207.00 mm
L/29
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
