30x30 EA — Sizes, Dimensions & Properties
3 sizes in the 30x30 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) |
|---|---|---|---|---|---|---|---|
| 30x30x3 | 1.36 | 30 | 3 | 1.74 | 1.4 | 0.899 | 0.581 |
| 30x30x4 | 1.78 | 30 | 4 | 2.27 | 1.8 | 0.892 | 0.577 |
| 30x30x5 | 2.18 | 30 | 5 | 2.78 | 2.16 | 0.883 | 0.575 |
30x30x3 EA
- Designation
- 30x30x3
- Mass per Metre
- 1.36 kg/m
- Leg Length
- 30 mm
- Thickness (t)
- 3 mm
- Root Radius (r)
- 5 mm
- Toe Radius (r2)
- 2.5 mm
- Cross-Sectional Area
- 1.74 cm2
- Centroid Distance cx
- 0.835 cm
- Centroid Distance cy
- 0.835 cm
- Second Moment of Area Ixx
- 1.4 cm4
- Second Moment of Area Iyy
- 1.4 cm4
- Radius of Gyration rxx
- 0.899 cm
- Radius of Gyration ryy
- 0.899 cm
- Elastic Modulus Zxx
- 0.649 cm3
- Elastic Modulus Zyy
- 0.649 cm3
- Second Moment of Area Iu
- 2.22 cm4
- Second Moment of Area Iv
- 0.586 cm4
- Radius of Gyration ru
- 1.13 cm
- Radius of Gyration rv
- 0.581 cm
- tan(alpha)
- 1
30x30x4 EA
- Designation
- 30x30x4
- Mass per Metre
- 1.78 kg/m
- Leg Length
- 30 mm
- Thickness (t)
- 4 mm
- Root Radius (r)
- 5 mm
- Toe Radius (r2)
- 2.5 mm
- Cross-Sectional Area
- 2.27 cm2
- Centroid Distance cx
- 0.878 cm
- Centroid Distance cy
- 0.878 cm
- Second Moment of Area Ixx
- 1.8 cm4
- Second Moment of Area Iyy
- 1.8 cm4
- Radius of Gyration rxx
- 0.892 cm
- Radius of Gyration ryy
- 0.892 cm
- Elastic Modulus Zxx
- 0.85 cm3
- Elastic Modulus Zyy
- 0.85 cm3
- Second Moment of Area Iu
- 2.85 cm4
- Second Moment of Area Iv
- 0.754 cm4
- Radius of Gyration ru
- 1.12 cm
- Radius of Gyration rv
- 0.577 cm
- tan(alpha)
- 1
30x30x5 EA
- Designation
- 30x30x5
- Mass per Metre
- 2.18 kg/m
- Leg Length
- 30 mm
- Thickness (t)
- 5 mm
- Root Radius (r)
- 5 mm
- Toe Radius (r2)
- 2.5 mm
- Cross-Sectional Area
- 2.78 cm2
- Centroid Distance cx
- 0.918 cm
- Centroid Distance cy
- 0.918 cm
- Second Moment of Area Ixx
- 2.16 cm4
- Second Moment of Area Iyy
- 2.16 cm4
- Radius of Gyration rxx
- 0.883 cm
- Radius of Gyration ryy
- 0.883 cm
- Elastic Modulus Zxx
- 1.04 cm3
- Elastic Modulus Zyy
- 1.04 cm3
- Second Moment of Area Iu
- 3.41 cm4
- Second Moment of Area Iv
- 0.917 cm4
- Radius of Gyration ru
- 1.11 cm
- Radius of Gyration rv
- 0.575 cm
- tan(alpha)
- 1
30x30 EA — Overview
The 30x30 serial size group contains 3 sections, ranging from 2.18 kg/m to 1.36 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.