Steel Section Catalog
UB 203x102x23
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 203x102x23 steel profile weighs 23.1 kg/m (15.52 lb/ft), has a depth of 203.2 mm (8.00 in), flange width 101.8 mm (4.01 in). Cross-sectional area: 2,890.3 mm². Moment of inertia Ix = 2,064.18 cm⁴, Iy = 163.76 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 203.2 mm | 8.00 in |
| Width (b) | 101.8 mm | 4.01 in |
| Web thickness (tw) | 5.4 mm | 0.21 in |
| Flange thickness (tf) | 9.3 mm | 0.37 in |
| Fillet radius (r) | 7.6 mm | 0.30 in |
| Weight | 23.1 kg/m | 15.52 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 2,890.3 mm² | 4.480 in² |
| Moment of inertia (Ix) | 2,064.18 cm⁴ | 49.59 in⁴ |
| Moment of inertia (Iy) | 163.76 cm⁴ | 3.93 in⁴ |
| Elastic section modulus (Sx) | 203.17 cm³ | 12.398 in³ |
| Elastic section modulus (Sy) | 32.17 cm³ | 1.963 in³ |
| Plastic section modulus (Zx) | 229.58 cm³ | 14.010 in³ |
| Plastic section modulus (Zy) | 49.53 cm³ | 3.023 in³ |
| Radius of gyration (rx) | 8.45 cm | 3.327 in |
| Radius of gyration (ry) | 2.38 cm | 0.937 in |
Beam Calculator— UB 203x102x23
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mfixed @ 0mfixed @ 6m→kN/m
Results — UB 203x102x23
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
4.09 mm
L/1468
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
