Steel Section Catalog
C 75x40x15x2
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 steel profile weighs 3.5 kg/m (2.32 lb/ft), has a depth of 75 mm (2.95 in), flange width 40 mm (1.57 in). Cross-sectional area: 354 mm². Moment of inertia Ix = 31.7 cm⁴, Iy = 8.3 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 2 mm ≈ 14 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 mm | 0.08 in |
| Lip | 15 mm | 0.59 in |
| Weight | 3.5 kg/m | 2.32 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 354 mm² | 0.549 in² |
| Moment of inertia (Ix) | 31.7 cm⁴ | 0.76 in⁴ |
| Moment of inertia (Iy) | 8.3 cm⁴ | 0.20 in⁴ |
| Elastic section modulus (Sx) | 8.45 cm³ | 0.516 in³ |
| Elastic section modulus (Sy) | 3.21 cm³ | 0.196 in³ |
| Plastic section modulus (Zx) | 9.72 cm³ | 0.593 in³ |
| Plastic section modulus (Zy) | 3.86 cm³ | 0.236 in³ |
| Radius of gyration (rx) | 2.99 cm | 1.177 in |
| Radius of gyration (ry) | 1.53 cm | 0.602 in |
Beam Calculator— C 75x40x15x2
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mfixed @ 0mfixed @ 6m→kN/m
Results — C 75x40x15x2
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
266.17 mm
L/23
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
