Steel Section Catalog
C 250x75x25x4.25
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 250x75x25x4.25 steel profile weighs 20.9 kg/m (14.01 lb/ft), has a depth of 250 mm (9.84 in), flange width 75 mm (2.95 in). Cross-sectional area: 1,840.3 mm². Moment of inertia Ix = 1,676.01 cm⁴, Iy = 131.17 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 4.25 mm ≈ 8 gauge (Manufacturers Standard Gage)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 250 mm | 9.84 in |
| Width (b) | 75 mm | 2.95 in |
| Thickness (t) | 4.3 mm | 0.17 in |
| Lip | 25 mm | 0.98 in |
| Weight | 20.9 kg/m | 14.01 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 1,840.3 mm² | 2.852 in² |
| Moment of inertia (Ix) | 1,676.01 cm⁴ | 40.27 in⁴ |
| Moment of inertia (Iy) | 131.17 cm⁴ | 3.15 in⁴ |
| Elastic section modulus (Sx) | 134.08 cm³ | 8.182 in³ |
| Elastic section modulus (Sy) | 23.44 cm³ | 1.430 in³ |
| Plastic section modulus (Zx) | 154.19 cm³ | 9.409 in³ |
| Plastic section modulus (Zy) | 28.13 cm³ | 1.717 in³ |
| Radius of gyration (rx) | 9.54 cm | 3.756 in |
| Radius of gyration (ry) | 2.67 cm | 1.051 in |
Beam Calculator— C 250x75x25x4.25
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mfixed @ 0mfixed @ 6m→kN/m
Results — C 250x75x25x4.25
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
5.03 mm
L/1192
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
