HE 340 A: Sizes, Dimensions and Properties
Full section properties for HE 340 A. All dimensions in mm, section properties in cm units.
| Designation | Mass (kg/m) | h (mm) | b (mm) | tw (mm) | tf (mm) | A (cm2) | Ixx (cm4) | Iyy (cm4) | Zxx (cm3) | Sxx (cm3) | rxx (cm) | ryy (cm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| HE 340 A | 105 | 330 | 300 | 9.5 | 16.5 | 133 | 27,693 | 7,436 | 1,678 | 1,851 | 14.4 | 7.46 |
HE 340 A HEA
- Designation
- HE 340 A
- Serial Size
- 340
- Mass per Metre
- 105 kg/m
- Depth of Section (h)
- 330 mm
- Width of Section (b)
- 300 mm
- Web Thickness (tw)
- 9.5 mm
- Flange Thickness (tf)
- 16.5 mm
- Root Radius (r)
- 27 mm
- Cross-Sectional Area
- 133 cm2
- Second Moment of Area Ixx
- 27,693 cm4
- Second Moment of Area Iyy
- 7,436 cm4
- Elastic Modulus Zxx
- 1,678 cm3
- Elastic Modulus Zyy
- 496 cm3
- Plastic Modulus Sxx
- 1,851 cm3
- Plastic Modulus Syy
- 755 cm3
- Radius of Gyration rxx
- 14.4 cm
- Radius of Gyration ryy
- 7.46 cm
- Source Doc
- british-steel-european-he
- Verified
- Verified Note
- Parsed from the British Steel European HE sections datasheet (carbon steel, hot-rolled, EN 10365). Source registered; cross-validated by Wel.y = Iy/(h/2).
340 HEA Overview
The 340 serial size group contains 1 section, ranging from 105 kg/m to 105 kg/m. All sections in this group share the same nominal depth and width but differ in web and flange thickness, which affects the weight and structural capacity.
Section properties are sourced from the Tata Steel Blue Book / SCI P363. For structural design to BS EN 1993-1-1 (Eurocode 3), use these properties with the appropriate partial factors from the UK National Annex.
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Section properties from EN 10365:2017 / ArcelorMittal European Sections.