Steel Section Catalog
C 75x40x15x3.35
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.
Also known as: Montén de 3 pulgadas (México) · PFC 75x40x15x3.35 (UK / Australia)
The C 75x40x15x3.35 steel profile weighs 5.8 kg/m (3.89 lb/ft), has a depth of 75 mm (2.95 in), flange width 40 mm (1.57 in). Cross-sectional area: 574.9 mm². Moment of inertia Ix = 49.53 cm⁴, Iy = 12.51 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 3.35 mm ≈ 10 gauge (Manufacturers Standard Gage)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 75 mm | 2.95 in |
| Width (b) | 40 mm | 1.57 in |
| Thickness (t) | 3.4 mm | 0.13 in |
| Lip | 15 mm | 0.59 in |
| Weight | 5.8 kg/m | 3.89 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 574.9 mm² | 0.891 in² |
| Moment of inertia (Ix) | 49.53 cm⁴ | 1.19 in⁴ |
| Moment of inertia (Iy) | 12.51 cm⁴ | 0.30 in⁴ |
| Elastic section modulus (Sx) | 13.21 cm³ | 0.806 in³ |
| Elastic section modulus (Sy) | 4.72 cm³ | 0.288 in³ |
| Plastic section modulus (Zx) | 15.19 cm³ | 0.927 in³ |
| Plastic section modulus (Zy) | 5.67 cm³ | 0.346 in³ |
| Radius of gyration (rx) | 2.94 cm | 1.157 in |
| Radius of gyration (ry) | 1.48 cm | 0.583 in |
Beam Calculator— C 75x40x15x3.35
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mfixed @ 0mfixed @ 6m→kN/m
Results — C 75x40x15x3.35
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
170.35 mm
L/35
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
