Steel Section Catalog
UPN 400
EN — Cold-formed Channel
Cold-formed channels (U shapes) are similar to C shapes but without stiffening lips. Used for light structural framing, supports, and secondary members.
The UPN 400 steel profile weighs 71.8 kg/m (48.25 lb/ft), has a depth of 400 mm (15.75 in), flange width 110 mm (4.33 in). Cross-sectional area: 8,092 mm². Moment of inertia Ix = 16,726.71 cm⁴, Iy = 628.86 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 400 mm | 15.75 in |
| Width (b) | 110 mm | 4.33 in |
| Web thickness (tw) | 14 mm | 0.55 in |
| Flange thickness (tf) | 18 mm | 0.71 in |
| Thickness (t) | 14 mm | 0.55 in |
| Fillet radius (r) | 18 mm | 0.71 in |
| Weight | 71.8 kg/m | 48.25 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 8,092 mm² | 12.543 in² |
| Moment of inertia (Ix) | 16,726.71 cm⁴ | 401.86 in⁴ |
| Moment of inertia (Iy) | 628.86 cm⁴ | 15.11 in⁴ |
| Elastic section modulus (Sx) | 836.34 cm³ | 51.037 in³ |
| Elastic section modulus (Sy) | 66.86 cm³ | 4.080 in³ |
| Plastic section modulus (Zx) | 961.79 cm³ | 58.692 in³ |
| Plastic section modulus (Zy) | 80.23 cm³ | 4.896 in³ |
| Radius of gyration (rx) | 14.38 cm | 5.661 in |
| Radius of gyration (ry) | 2.79 cm | 1.098 in |
Beam Calculator— UPN 400
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mfixed @ 0mfixed @ 6m→kN/m
Results — UPN 400
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
0.50 mm
L/11895
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
