25x25 EA — Sizes, Dimensions & Properties
3 sizes in the 25x25 serial size group. All dimensions in mm, section properties in cm units.
| Designation | Mass (kg/m) | Leg (mm) | t (mm) | A (cm2) | Ixx (cm4) | rxx (cm) | rv (cm) |
|---|---|---|---|---|---|---|---|
| 25x25x3 | 1.12 | 25 | 3 | 1.42 | 0.803 | 0.751 | 0.484 |
| 25x25x4 | 1.45 | 25 | 4 | 1.85 | 1.02 | 0.741 | 0.482 |
| 25x25x5 | 1.78 | 25 | 5 | 2.26 | 1.21 | 0.731 | 0.481 |
25x25x3 EA
- Designation
- 25x25x3
- Mass per Metre
- 1.12 kg/m
- Leg Length
- 25 mm
- Thickness (t)
- 3 mm
- Root Radius (r)
- 3.5 mm
- Toe Radius (r2)
- 1.75 mm
- Cross-Sectional Area
- 1.42 cm2
- Centroid Distance cx
- 0.723 cm
- Centroid Distance cy
- 0.723 cm
- Second Moment of Area Ixx
- 0.803 cm4
- Second Moment of Area Iyy
- 0.803 cm4
- Radius of Gyration rxx
- 0.751 cm
- Radius of Gyration ryy
- 0.751 cm
- Elastic Modulus Zxx
- 0.452 cm3
- Elastic Modulus Zyy
- 0.452 cm3
- Second Moment of Area Iu
- 1.27 cm4
- Second Moment of Area Iv
- 0.334 cm4
- Radius of Gyration ru
- 0.945 cm
- Radius of Gyration rv
- 0.484 cm
- tan(alpha)
- 1
25x25x4 EA
- Designation
- 25x25x4
- Mass per Metre
- 1.45 kg/m
- Leg Length
- 25 mm
- Thickness (t)
- 4 mm
- Root Radius (r)
- 3.5 mm
- Toe Radius (r2)
- 1.75 mm
- Cross-Sectional Area
- 1.85 cm2
- Centroid Distance cx
- 0.762 cm
- Centroid Distance cy
- 0.762 cm
- Second Moment of Area Ixx
- 1.02 cm4
- Second Moment of Area Iyy
- 1.02 cm4
- Radius of Gyration rxx
- 0.741 cm
- Radius of Gyration ryy
- 0.741 cm
- Elastic Modulus Zxx
- 0.586 cm3
- Elastic Modulus Zyy
- 0.586 cm3
- Second Moment of Area Iu
- 1.61 cm4
- Second Moment of Area Iv
- 0.43 cm4
- Radius of Gyration ru
- 0.931 cm
- Radius of Gyration rv
- 0.482 cm
- tan(alpha)
- 1
25x25x5 EA
- Designation
- 25x25x5
- Mass per Metre
- 1.78 kg/m
- Leg Length
- 25 mm
- Thickness (t)
- 5 mm
- Root Radius (r)
- 3.5 mm
- Toe Radius (r2)
- 1.75 mm
- Cross-Sectional Area
- 2.26 cm2
- Centroid Distance cx
- 0.799 cm
- Centroid Distance cy
- 0.799 cm
- Second Moment of Area Ixx
- 1.21 cm4
- Second Moment of Area Iyy
- 1.21 cm4
- Radius of Gyration rxx
- 0.731 cm
- Radius of Gyration ryy
- 0.731 cm
- Elastic Modulus Zxx
- 0.711 cm3
- Elastic Modulus Zyy
- 0.711 cm3
- Second Moment of Area Iu
- 1.9 cm4
- Second Moment of Area Iv
- 0.524 cm4
- Radius of Gyration ru
- 0.915 cm
- Radius of Gyration rv
- 0.481 cm
- tan(alpha)
- 1
25x25 EA — Overview
The 25x25 serial size group contains 3 sections, ranging from 1.78 kg/m to 1.12 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 Tata Steel Blue Book / SCI P363 / BS 4-1:2005.