Steel Section Catalog
UB 305x102x25
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 305x102x25 steel profile weighs 24.8 kg/m (16.67 lb/ft), has a depth of 305.1 mm (12.01 in), flange width 101.6 mm (4.00 in). Cross-sectional area: 3,110.8 mm². Moment of inertia Ix = 4,352.84 cm⁴, Iy = 122.83 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 305.1 mm | 12.01 in |
| Width (b) | 101.6 mm | 4.00 in |
| Web thickness (tw) | 5.8 mm | 0.23 in |
| Flange thickness (tf) | 7 mm | 0.28 in |
| Fillet radius (r) | 7.6 mm | 0.30 in |
| Weight | 24.8 kg/m | 16.67 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 3,110.8 mm² | 4.822 in² |
| Moment of inertia (Ix) | 4,352.84 cm⁴ | 104.58 in⁴ |
| Moment of inertia (Iy) | 122.83 cm⁴ | 2.95 in⁴ |
| Elastic section modulus (Sx) | 285.34 cm³ | 17.413 in³ |
| Elastic section modulus (Sy) | 24.18 cm³ | 1.476 in³ |
| Plastic section modulus (Zx) | 334.88 cm³ | 20.436 in³ |
| Plastic section modulus (Zy) | 38.58 cm³ | 2.354 in³ |
| Radius of gyration (rx) | 11.83 cm | 4.657 in |
| Radius of gyration (ry) | 1.99 cm | 0.783 in |
Beam Calculator— UB 305x102x25
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mfixed @ 0mfixed @ 6m→kN/m
Results — UB 305x102x25
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
1.94 mm
L/3095
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
