Steel Section Catalog
C 250x85x25x3.75
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 250x85x25x3.75 (UK / Australia)
The C 250x85x25x3.75 steel profile weighs 18.7 kg/m (12.56 lb/ft), has a depth of 250 mm (9.84 in), flange width 85 mm (3.35 in). Cross-sectional area: 1,706.3 mm². Moment of inertia Ix = 1,607.14 cm⁴, Iy = 160.27 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 3.75 mm ≈ 9 gauge (Manufacturers Standard Gage)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 250 mm | 9.84 in |
| Width (b) | 85 mm | 3.35 in |
| Thickness (t) | 3.8 mm | 0.15 in |
| Lip | 25 mm | 0.98 in |
| Weight | 18.7 kg/m | 12.56 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 1,706.3 mm² | 2.645 in² |
| Moment of inertia (Ix) | 1,607.14 cm⁴ | 38.61 in⁴ |
| Moment of inertia (Iy) | 160.27 cm⁴ | 3.85 in⁴ |
| Elastic section modulus (Sx) | 128.57 cm³ | 7.846 in³ |
| Elastic section modulus (Sy) | 25.75 cm³ | 1.571 in³ |
| Plastic section modulus (Zx) | 147.86 cm³ | 9.023 in³ |
| Plastic section modulus (Zy) | 30.9 cm³ | 1.886 in³ |
| Radius of gyration (rx) | 9.71 cm | 3.823 in |
| Radius of gyration (ry) | 3.06 cm | 1.205 in |
Beam Calculator— C 250x85x25x3.75
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mfixed @ 0mfixed @ 6m→kN/m
Results — C 250x85x25x3.75
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
5.25 mm
L/1143
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
