Steel Section Catalog
UB 406x140x39
EN — Wide Flange (I-beam)
Wide flange beams (W shapes / I-beams) are the most common structural steel profile used in building construction. They are used for beams, columns, and girders in steel-framed buildings and bridges. Designed per AISC 360, Eurocode 3, and NBR 8800.
The UB 406x140x39 steel profile weighs 39.0 kg/m (26.21 lb/ft), has a depth of 398 mm (15.67 in), flange width 141.8 mm (5.58 in). Cross-sectional area: 4,876.1 mm². Moment of inertia Ix = 12,192.16 cm⁴, Iy = 409.5 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 398 mm | 15.67 in |
| Width (b) | 141.8 mm | 5.58 in |
| Web thickness (tw) | 6.4 mm | 0.25 in |
| Flange thickness (tf) | 8.6 mm | 0.34 in |
| Fillet radius (r) | 10.2 mm | 0.40 in |
| Weight | 39.0 kg/m | 26.21 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 4,876.1 mm² | 7.558 in² |
| Moment of inertia (Ix) | 12,192.16 cm⁴ | 292.92 in⁴ |
| Moment of inertia (Iy) | 409.5 cm⁴ | 9.84 in⁴ |
| Elastic section modulus (Sx) | 612.67 cm³ | 37.388 in³ |
| Elastic section modulus (Sy) | 57.76 cm³ | 3.525 in³ |
| Plastic section modulus (Zx) | 706.88 cm³ | 43.137 in³ |
| Plastic section modulus (Zy) | 90.36 cm³ | 5.514 in³ |
| Radius of gyration (rx) | 15.81 cm | 6.224 in |
| Radius of gyration (ry) | 2.9 cm | 1.142 in |
Beam Calculator— UB 406x140x39
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mfixed @ 0mfixed @ 6m→kN/m
Results — UB 406x140x39
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
0.69 mm
L/8670
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
