254x146 UB — Sizes, Dimensions & Properties
3 sizes in the 254x146 serial size group. 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 254x146x43 | 43 | 259.6 | 147.3 | 7.2 | 12.7 | 54.8 | 6,540 | 677 | 504 | 566 | 10.9 | 3.52 |
| 254x146x37 | 37 | 256 | 146.4 | 6.3 | 10.9 | 47.2 | 5,540 | 571 | 433 | 483 | 10.8 | 3.48 |
| 254x146x31 | 31.1 | 251.4 | 146.1 | 6 | 8.6 | 39.7 | 4,410 | 448 | 351 | 393 | 10.5 | 3.36 |
254x146x43 UB
- Designation
- 254x146x43
- Serial Size
- 254x146
- Mass per Metre
- 43 kg/m
- Depth of Section (h)
- 259.6 mm
- Width of Section (b)
- 147.3 mm
- Web Thickness (tw)
- 7.2 mm
- Flange Thickness (tf)
- 12.7 mm
- Root Radius (r)
- 7.6 mm
- Depth Between Fillets (d)
- 219 mm
- Local Buckling Ratio d/tw
- 30.4
- Local Buckling Ratio cf/tf
- 5.8
- Second Moment of Area Ixx
- 6,540 cm4
- Second Moment of Area Iyy
- 677 cm4
- Elastic Modulus Zxx
- 504 cm3
- Elastic Modulus Zyy
- 92 cm3
- Plastic Modulus Sxx
- 566 cm3
- Plastic Modulus Syy
- 141 cm3
- Radius of Gyration rxx
- 10.9 cm
- Radius of Gyration ryy
- 3.52 cm
- Cross-Sectional Area
- 54.8 cm2
- Buckling Parameter (u)
- 0.891
- Torsional Index (x)
- 21.2
- Warping Constant (Iw)
- 0.103 dm6
- Torsional Constant (It)
- 23.9 cm4
- Surface Area per Metre
- 1.08 m2/m
- Surface Area per Tonne
- 25.1 m2/t
254x146x37 UB
- Designation
- 254x146x37
- Serial Size
- 254x146
- Mass per Metre
- 37 kg/m
- Depth of Section (h)
- 256 mm
- Width of Section (b)
- 146.4 mm
- Web Thickness (tw)
- 6.3 mm
- Flange Thickness (tf)
- 10.9 mm
- Root Radius (r)
- 7.6 mm
- Depth Between Fillets (d)
- 219 mm
- Local Buckling Ratio d/tw
- 34.8
- Local Buckling Ratio cf/tf
- 6.72
- Second Moment of Area Ixx
- 5,540 cm4
- Second Moment of Area Iyy
- 571 cm4
- Elastic Modulus Zxx
- 433 cm3
- Elastic Modulus Zyy
- 78 cm3
- Plastic Modulus Sxx
- 483 cm3
- Plastic Modulus Syy
- 119 cm3
- Radius of Gyration rxx
- 10.8 cm
- Radius of Gyration ryy
- 3.48 cm
- Cross-Sectional Area
- 47.2 cm2
- Buckling Parameter (u)
- 0.89
- Torsional Index (x)
- 24.3
- Warping Constant (Iw)
- 0.0857 dm6
- Torsional Constant (It)
- 15.3 cm4
- Surface Area per Metre
- 1.07 m2/m
- Surface Area per Tonne
- 28.9 m2/t
254x146x31 UB
- Designation
- 254x146x31
- Serial Size
- 254x146
- Mass per Metre
- 31.1 kg/m
- Depth of Section (h)
- 251.4 mm
- Width of Section (b)
- 146.1 mm
- Web Thickness (tw)
- 6 mm
- Flange Thickness (tf)
- 8.6 mm
- Root Radius (r)
- 7.6 mm
- Depth Between Fillets (d)
- 219 mm
- Local Buckling Ratio d/tw
- 36.5
- Local Buckling Ratio cf/tf
- 8.49
- Second Moment of Area Ixx
- 4,410 cm4
- Second Moment of Area Iyy
- 448 cm4
- Elastic Modulus Zxx
- 351 cm3
- Elastic Modulus Zyy
- 61.3 cm3
- Plastic Modulus Sxx
- 393 cm3
- Plastic Modulus Syy
- 94.1 cm3
- Radius of Gyration rxx
- 10.5 cm
- Radius of Gyration ryy
- 3.36 cm
- Cross-Sectional Area
- 39.7 cm2
- Buckling Parameter (u)
- 0.88
- Torsional Index (x)
- 29.6
- Warping Constant (Iw)
- 0.066 dm6
- Torsional Constant (It)
- 8.55 cm4
- Surface Area per Metre
- 1.06 m2/m
- Surface Area per Tonne
- 34 m2/t
254x146 UB — Overview
The 254x146 serial size group contains 3 sections, ranging from 31.1 kg/m to 43 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.