Steel Section Catalog
UB 305x127x48
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 305x127x48 steel profile weighs 48.1 kg/m (32.32 lb/ft), has a depth of 311 mm (12.24 in), flange width 125.3 mm (4.93 in). Cross-sectional area: 6,055.4 mm². Moment of inertia Ix = 9,442.43 cm⁴, Iy = 460.74 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 311 mm | 12.24 in |
| Width (b) | 125.3 mm | 4.93 in |
| Web thickness (tw) | 9 mm | 0.35 in |
| Flange thickness (tf) | 14 mm | 0.55 in |
| Fillet radius (r) | 8.9 mm | 0.35 in |
| Weight | 48.1 kg/m | 32.32 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 6,055.4 mm² | 9.386 in² |
| Moment of inertia (Ix) | 9,442.43 cm⁴ | 226.85 in⁴ |
| Moment of inertia (Iy) | 460.74 cm⁴ | 11.07 in⁴ |
| Elastic section modulus (Sx) | 607.23 cm³ | 37.056 in³ |
| Elastic section modulus (Sy) | 73.54 cm³ | 4.488 in³ |
| Plastic section modulus (Zx) | 701.2 cm³ | 42.790 in³ |
| Plastic section modulus (Zy) | 115.63 cm³ | 7.056 in³ |
| Radius of gyration (rx) | 12.49 cm | 4.917 in |
| Radius of gyration (ry) | 2.76 cm | 1.087 in |
Beam Calculator— UB 305x127x48
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mfixed @ 0mfixed @ 6m→kN/m
Results — UB 305x127x48
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
0.89 mm
L/6715
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
