Steel Section Catalog
C 250x85x25x4.75
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 10 pulgadas (México) · PFC 250x85x25x4.75 (UK / Australia)
The C 250x85x25x4.75 steel profile weighs 23.7 kg/m (15.91 lb/ft), has a depth of 250 mm (9.84 in), flange width 85 mm (3.35 in). Cross-sectional area: 2,142.3 mm². Moment of inertia Ix = 1,997.65 cm⁴, Iy = 195.51 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 4.75 mm ≈ 7 gauge (Manufacturers Standard Gage)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 250 mm | 9.84 in |
| Width (b) | 85 mm | 3.35 in |
| Thickness (t) | 4.8 mm | 0.19 in |
| Lip | 25 mm | 0.98 in |
| Weight | 23.7 kg/m | 15.91 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 2,142.3 mm² | 3.321 in² |
| Moment of inertia (Ix) | 1,997.65 cm⁴ | 47.99 in⁴ |
| Moment of inertia (Iy) | 195.51 cm⁴ | 4.70 in⁴ |
| Elastic section modulus (Sx) | 159.81 cm³ | 9.752 in³ |
| Elastic section modulus (Sy) | 31.2 cm³ | 1.904 in³ |
| Plastic section modulus (Zx) | 183.78 cm³ | 11.215 in³ |
| Plastic section modulus (Zy) | 37.44 cm³ | 2.285 in³ |
| Radius of gyration (rx) | 9.66 cm | 3.803 in |
| Radius of gyration (ry) | 3.02 cm | 1.189 in |
Beam Calculator— C 250x85x25x4.75
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mfixed @ 0mfixed @ 6m→kN/m
Results — C 250x85x25x4.75
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
4.22 mm
L/1421
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
