120x120 EA — Sizes, Dimensions & Properties
4 sizes in the 120x120 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) |
|---|---|---|---|---|---|---|---|
| 120x120x8 | 14.7 | 120 | 8 | 18.7 | 255 | 3.69 | 2.37 |
| 120x120x10 | 18.2 | 120 | 10 | 23.2 | 313 | 3.67 | 2.36 |
| 120x120x12 | 21.6 | 120 | 12 | 27.5 | 368 | 3.65 | 2.35 |
| 120x120x15 | 26.6 | 120 | 15 | 33.9 | 445 | 3.62 | 2.33 |
120x120x8 EA
- Designation
- 120x120x8
- Mass per Metre
- 14.7 kg/m
- Leg Length
- 120 mm
- Thickness (t)
- 8 mm
- Root Radius (r)
- 13 mm
- Toe Radius (r2)
- 6.5 mm
- Cross-Sectional Area
- 18.7 cm2
- Centroid Distance cx
- 3.23 cm
- Centroid Distance cy
- 3.23 cm
- Second Moment of Area Ixx
- 255 cm4
- Second Moment of Area Iyy
- 255 cm4
- Radius of Gyration rxx
- 3.69 cm
- Radius of Gyration ryy
- 3.69 cm
- Elastic Modulus Zxx
- 29.1 cm3
- Elastic Modulus Zyy
- 29.1 cm3
- Second Moment of Area Iu
- 405 cm4
- Second Moment of Area Iv
- 105 cm4
- Radius of Gyration ru
- 4.65 cm
- Radius of Gyration rv
- 2.37 cm
- tan(alpha)
- 1
120x120x10 EA
- Designation
- 120x120x10
- Mass per Metre
- 18.2 kg/m
- Leg Length
- 120 mm
- Thickness (t)
- 10 mm
- Root Radius (r)
- 13 mm
- Toe Radius (r2)
- 6.5 mm
- Cross-Sectional Area
- 23.2 cm2
- Centroid Distance cx
- 3.31 cm
- Centroid Distance cy
- 3.31 cm
- Second Moment of Area Ixx
- 313 cm4
- Second Moment of Area Iyy
- 313 cm4
- Radius of Gyration rxx
- 3.67 cm
- Radius of Gyration ryy
- 3.67 cm
- Elastic Modulus Zxx
- 36 cm3
- Elastic Modulus Zyy
- 36 cm3
- Second Moment of Area Iu
- 497 cm4
- Second Moment of Area Iv
- 129 cm4
- Radius of Gyration ru
- 4.63 cm
- Radius of Gyration rv
- 2.36 cm
- tan(alpha)
- 1
120x120x12 EA
- Designation
- 120x120x12
- Mass per Metre
- 21.6 kg/m
- Leg Length
- 120 mm
- Thickness (t)
- 12 mm
- Root Radius (r)
- 13 mm
- Toe Radius (r2)
- 6.5 mm
- Cross-Sectional Area
- 27.5 cm2
- Centroid Distance cx
- 3.4 cm
- Centroid Distance cy
- 3.4 cm
- Second Moment of Area Ixx
- 368 cm4
- Second Moment of Area Iyy
- 368 cm4
- Radius of Gyration rxx
- 3.65 cm
- Radius of Gyration ryy
- 3.65 cm
- Elastic Modulus Zxx
- 42.7 cm3
- Elastic Modulus Zyy
- 42.7 cm3
- Second Moment of Area Iu
- 584 cm4
- Second Moment of Area Iv
- 152 cm4
- Radius of Gyration ru
- 4.6 cm
- Radius of Gyration rv
- 2.35 cm
- tan(alpha)
- 1
120x120x15 EA
- Designation
- 120x120x15
- Mass per Metre
- 26.6 kg/m
- Leg Length
- 120 mm
- Thickness (t)
- 15 mm
- Root Radius (r)
- 13 mm
- Toe Radius (r2)
- 6.5 mm
- Cross-Sectional Area
- 33.9 cm2
- Centroid Distance cx
- 3.51 cm
- Centroid Distance cy
- 3.51 cm
- Second Moment of Area Ixx
- 445 cm4
- Second Moment of Area Iyy
- 445 cm4
- Radius of Gyration rxx
- 3.62 cm
- Radius of Gyration ryy
- 3.62 cm
- Elastic Modulus Zxx
- 52.4 cm3
- Elastic Modulus Zyy
- 52.4 cm3
- Second Moment of Area Iu
- 705 cm4
- Second Moment of Area Iv
- 185 cm4
- Radius of Gyration ru
- 4.56 cm
- Radius of Gyration rv
- 2.33 cm
- tan(alpha)
- 1
120x120 EA — Overview
The 120x120 serial size group contains 4 sections, ranging from 26.6 kg/m to 14.7 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.