Steel Section Catalog
C 127x50x17x4.25
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 127x50x17x4.25 steel profile weighs 11.3 kg/m (7.58 lb/ft), has a depth of 127 mm (5.00 in), flange width 50 mm (1.97 in). Cross-sectional area: 1,037 mm². Moment of inertia Ix = 249.07 cm⁴, Iy = 32.91 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 4.25 mm ≈ 8 gauge (Manufacturers Standard Gage)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 127 mm | 5.00 in |
| Width (b) | 50 mm | 1.97 in |
| Thickness (t) | 4.3 mm | 0.17 in |
| Lip | 17 mm | 0.67 in |
| Weight | 11.3 kg/m | 7.58 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 1,037 mm² | 1.607 in² |
| Moment of inertia (Ix) | 249.07 cm⁴ | 5.98 in⁴ |
| Moment of inertia (Iy) | 32.91 cm⁴ | 0.79 in⁴ |
| Elastic section modulus (Sx) | 39.22 cm³ | 2.393 in³ |
| Elastic section modulus (Sy) | 9.18 cm³ | 0.560 in³ |
| Plastic section modulus (Zx) | 45.11 cm³ | 2.753 in³ |
| Plastic section modulus (Zy) | 11.02 cm³ | 0.672 in³ |
| Radius of gyration (rx) | 4.9 cm | 1.929 in |
| Radius of gyration (ry) | 1.78 cm | 0.701 in |
Beam Calculator— C 127x50x17x4.25
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mfixed @ 0mfixed @ 6m→kN/m
Results — C 127x50x17x4.25
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
33.88 mm
L/177
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
