406x140 UB — Sizes, Dimensions & Properties
3 sizes in the 406x140 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 406x140x53 | 53.3 | 406.6 | 143.3 | 7.9 | 12.9 | 67.9 | 18,300 | 635 | 899 | 1,030 | 16.4 | 3.06 |
| 406x140x46 | 46 | 403.2 | 142.2 | 6.8 | 11.2 | 58.6 | 15,700 | 538 | 778 | 888 | 16.4 | 3.03 |
| 406x140x39 | 39 | 398 | 141.8 | 6.4 | 8.6 | 49.7 | 12,500 | 410 | 629 | 724 | 15.9 | 2.87 |
406x140x53 UB
- Designation
- 406x140x53
- Serial Size
- 406x140
- Mass per Metre
- 53.3 kg/m
- Depth of Section (h)
- 406.6 mm
- Width of Section (b)
- 143.3 mm
- Web Thickness (tw)
- 7.9 mm
- Flange Thickness (tf)
- 12.9 mm
- Root Radius (r)
- 10.2 mm
- Depth Between Fillets (d)
- 360.4 mm
- Local Buckling Ratio d/tw
- 45.6
- Local Buckling Ratio cf/tf
- 5.55
- Second Moment of Area Ixx
- 18,300 cm4
- Second Moment of Area Iyy
- 635 cm4
- Elastic Modulus Zxx
- 899 cm3
- Elastic Modulus Zyy
- 88.6 cm3
- Plastic Modulus Sxx
- 1,030 cm3
- Plastic Modulus Syy
- 139 cm3
- Radius of Gyration rxx
- 16.4 cm
- Radius of Gyration ryy
- 3.06 cm
- Cross-Sectional Area
- 67.9 cm2
- Buckling Parameter (u)
- 0.87
- Torsional Index (x)
- 34.1
- Warping Constant (Iw)
- 0.246 dm6
- Torsional Constant (It)
- 29 cm4
- Surface Area per Metre
- 1.35 m2/m
- Surface Area per Tonne
- 25.3 m2/t
406x140x46 UB
- Designation
- 406x140x46
- Serial Size
- 406x140
- Mass per Metre
- 46 kg/m
- Depth of Section (h)
- 403.2 mm
- Width of Section (b)
- 142.2 mm
- Web Thickness (tw)
- 6.8 mm
- Flange Thickness (tf)
- 11.2 mm
- Root Radius (r)
- 10.2 mm
- Depth Between Fillets (d)
- 360.4 mm
- Local Buckling Ratio d/tw
- 53
- Local Buckling Ratio cf/tf
- 6.35
- Second Moment of Area Ixx
- 15,700 cm4
- Second Moment of Area Iyy
- 538 cm4
- Elastic Modulus Zxx
- 778 cm3
- Elastic Modulus Zyy
- 75.7 cm3
- Plastic Modulus Sxx
- 888 cm3
- Plastic Modulus Syy
- 118 cm3
- Radius of Gyration rxx
- 16.4 cm
- Radius of Gyration ryy
- 3.03 cm
- Cross-Sectional Area
- 58.6 cm2
- Buckling Parameter (u)
- 0.871
- Torsional Index (x)
- 38.9
- Warping Constant (Iw)
- 0.207 dm6
- Torsional Constant (It)
- 19 cm4
- Surface Area per Metre
- 1.34 m2/m
- Surface Area per Tonne
- 29.1 m2/t
406x140x39 UB
- Designation
- 406x140x39
- Serial Size
- 406x140
- Mass per Metre
- 39 kg/m
- Depth of Section (h)
- 398 mm
- Width of Section (b)
- 141.8 mm
- Web Thickness (tw)
- 6.4 mm
- Flange Thickness (tf)
- 8.6 mm
- Root Radius (r)
- 10.2 mm
- Depth Between Fillets (d)
- 360.4 mm
- Local Buckling Ratio d/tw
- 56.3
- Local Buckling Ratio cf/tf
- 8.24
- Second Moment of Area Ixx
- 12,500 cm4
- Second Moment of Area Iyy
- 410 cm4
- Elastic Modulus Zxx
- 629 cm3
- Elastic Modulus Zyy
- 57.8 cm3
- Plastic Modulus Sxx
- 724 cm3
- Plastic Modulus Syy
- 90.8 cm3
- Radius of Gyration rxx
- 15.9 cm
- Radius of Gyration ryy
- 2.87 cm
- Cross-Sectional Area
- 49.7 cm2
- Buckling Parameter (u)
- 0.858
- Torsional Index (x)
- 47.5
- Warping Constant (Iw)
- 0.155 dm6
- Torsional Constant (It)
- 10.7 cm4
- Surface Area per Metre
- 1.33 m2/m
- Surface Area per Tonne
- 34.1 m2/t
406x140 UB — Overview
The 406x140 serial size group contains 3 sections, ranging from 39 kg/m to 53.3 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.