Steel Section Catalog
UB 356x171x51
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 356x171x51 steel profile weighs 51.0 kg/m (34.27 lb/ft), has a depth of 355 mm (13.98 in), flange width 171.5 mm (6.75 in). Cross-sectional area: 6,401.3 mm². Moment of inertia Ix = 13,896.51 cm⁴, Iy = 967.93 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 355 mm | 13.98 in |
| Width (b) | 171.5 mm | 6.75 in |
| Web thickness (tw) | 7.4 mm | 0.29 in |
| Flange thickness (tf) | 11.5 mm | 0.45 in |
| Fillet radius (r) | 10.2 mm | 0.40 in |
| Weight | 51.0 kg/m | 34.27 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 6,401.3 mm² | 9.922 in² |
| Moment of inertia (Ix) | 13,896.51 cm⁴ | 333.86 in⁴ |
| Moment of inertia (Iy) | 967.93 cm⁴ | 23.25 in⁴ |
| Elastic section modulus (Sx) | 782.9 cm³ | 47.776 in³ |
| Elastic section modulus (Sy) | 112.88 cm³ | 6.888 in³ |
| Plastic section modulus (Zx) | 881.38 cm³ | 53.785 in³ |
| Plastic section modulus (Zy) | 173.67 cm³ | 10.598 in³ |
| Radius of gyration (rx) | 14.73 cm | 5.799 in |
| Radius of gyration (ry) | 3.89 cm | 1.531 in |
Beam Calculator— UB 356x171x51
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mfixed @ 0mfixed @ 6m→kN/m
Results — UB 356x171x51
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
0.61 mm
L/9882
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
