Steel Section Catalog
UB 305x102x28
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 305x102x28 steel profile weighs 28.2 kg/m (18.95 lb/ft), has a depth of 308.7 mm (12.15 in), flange width 101.8 mm (4.01 in). Cross-sectional area: 3,538.3 mm². Moment of inertia Ix = 5,263.13 cm⁴, Iy = 155.25 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 308.7 mm | 12.15 in |
| Width (b) | 101.8 mm | 4.01 in |
| Web thickness (tw) | 6 mm | 0.24 in |
| Flange thickness (tf) | 8.8 mm | 0.35 in |
| Fillet radius (r) | 7.6 mm | 0.30 in |
| Weight | 28.2 kg/m | 18.95 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 3,538.3 mm² | 5.484 in² |
| Moment of inertia (Ix) | 5,263.13 cm⁴ | 126.45 in⁴ |
| Moment of inertia (Iy) | 155.25 cm⁴ | 3.73 in⁴ |
| Elastic section modulus (Sx) | 340.99 cm³ | 20.809 in³ |
| Elastic section modulus (Sy) | 30.5 cm³ | 1.861 in³ |
| Plastic section modulus (Zx) | 395.77 cm³ | 24.151 in³ |
| Plastic section modulus (Zy) | 48.22 cm³ | 2.943 in³ |
| Radius of gyration (rx) | 12.2 cm | 4.803 in |
| Radius of gyration (ry) | 2.09 cm | 0.823 in |
Beam Calculator— UB 305x102x28
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mfixed @ 0mfixed @ 6m→kN/m
Results — UB 305x102x28
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
1.60 mm
L/3743
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
