Steel Section Catalog
HEA 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.
Also known as: HEA 340 (México) · Doble T HEA 340 (Argentina / LATAM) · UB 330 (UK / Australia)
The HEA 340 steel profile weighs 105.0 kg/m (70.56 lb/ft), has a depth of 330 mm (12.99 in), flange width 300 mm (11.81 in). Cross-sectional area: 12,721.5 mm². Moment of inertia Ix = 26,421.33 cm⁴, Iy = 7,427.12 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 330 mm | 12.99 in |
| Width (b) | 300 mm | 11.81 in |
| Web thickness (tw) | 9.5 mm | 0.37 in |
| Flange thickness (tf) | 16.5 mm | 0.65 in |
| Fillet radius (r) | 27 mm | 1.06 in |
| Weight | 105.0 kg/m | 70.56 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 12,721.5 mm² | 19.718 in² |
| Moment of inertia (Ix) | 26,421.33 cm⁴ | 634.77 in⁴ |
| Moment of inertia (Iy) | 7,427.12 cm⁴ | 178.44 in⁴ |
| Elastic section modulus (Sx) | 1,601.29 cm³ | 97.717 in³ |
| Elastic section modulus (Sy) | 495.14 cm³ | 30.215 in³ |
| Plastic section modulus (Zx) | 1,761.32 cm³ | 107.483 in³ |
| Plastic section modulus (Zy) | 749.2 cm³ | 45.719 in³ |
| Radius of gyration (rx) | 14.41 cm | 5.673 in |
| Radius of gyration (ry) | 7.64 cm | 3.008 in |
Beam Calculator— HEA 340
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mfixed @ 0mfixed @ 6m→kN/m
Results — HEA 340
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
0.32 mm
L/18789
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
