Steel Section Catalog
HEB 340
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 HEB 340 steel profile weighs 134.0 kg/m (90.05 lb/ft), has a depth of 340 mm (13.39 in), flange width 300 mm (11.81 in). Cross-sectional area: 16,464 mm². Moment of inertia Ix = 35,384.62 cm⁴, Iy = 9,679.28 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 340 mm | 13.39 in |
| Width (b) | 300 mm | 11.81 in |
| Web thickness (tw) | 12 mm | 0.47 in |
| Flange thickness (tf) | 21.5 mm | 0.85 in |
| Fillet radius (r) | 27 mm | 1.06 in |
| Weight | 134.0 kg/m | 90.05 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 16,464 mm² | 25.519 in² |
| Moment of inertia (Ix) | 35,384.62 cm⁴ | 850.12 in⁴ |
| Moment of inertia (Iy) | 9,679.28 cm⁴ | 232.54 in⁴ |
| Elastic section modulus (Sx) | 2,081.45 cm³ | 127.018 in³ |
| Elastic section modulus (Sy) | 645.29 cm³ | 39.378 in³ |
| Plastic section modulus (Zx) | 2,318.95 cm³ | 141.512 in³ |
| Plastic section modulus (Zy) | 978.19 cm³ | 59.693 in³ |
| Radius of gyration (rx) | 14.66 cm | 5.772 in |
| Radius of gyration (ry) | 7.67 cm | 3.020 in |
Beam Calculator— HEB 340
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mfixed @ 0mfixed @ 6m→kN/m
Results — HEB 340
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
0.24 mm
L/25162
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
