356x406 UC — Sizes, Dimensions & Properties
7 sizes in the 356x406 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 356x406x634 | 633.9 | 474.6 | 424 | 47.6 | 77 | 808 | 275,000 | 98,100 | 11,600 | 14,200 | 18.4 | 11 |
| 356x406x551 | 551 | 455.6 | 418.5 | 42.1 | 67.5 | 702 | 227,000 | 82,700 | 9,960 | 12,100 | 18 | 10.9 |
| 356x406x467 | 467 | 436.6 | 412.2 | 35.8 | 58 | 595 | 183,000 | 67,800 | 8,380 | 10,000 | 17.5 | 10.7 |
| 356x406x393 | 393 | 419 | 407 | 30.6 | 49.2 | 501 | 147,000 | 55,400 | 7,000 | 8,220 | 17.1 | 10.5 |
| 356x406x340 | 339.9 | 406.4 | 403 | 26.6 | 42.9 | 433 | 123,000 | 46,900 | 6,030 | 7,000 | 16.8 | 10.4 |
| 356x406x287 | 287.1 | 393.6 | 399 | 22.6 | 36.5 | 366 | 99,900 | 38,700 | 5,070 | 5,810 | 16.5 | 10.3 |
| 356x406x235 | 235.1 | 381 | 394.8 | 18.4 | 30.2 | 300 | 79,100 | 31,000 | 4,150 | 4,690 | 16.3 | 10.2 |
356x406x634 UC
- Designation
- 356x406x634
- Serial Size
- 356x406
- Mass per Metre
- 633.9 kg/m
- Depth of Section (h)
- 474.6 mm
- Width of Section (b)
- 424 mm
- Web Thickness (tw)
- 47.6 mm
- Flange Thickness (tf)
- 77 mm
- Root Radius (r)
- 15.2 mm
- Depth Between Fillets (d)
- 290.2 mm
- Local Buckling Ratio d/tw
- 6.1
- Local Buckling Ratio cf/tf
- 2.75
- Second Moment of Area Ixx
- 275,000 cm4
- Second Moment of Area Iyy
- 98,100 cm4
- Elastic Modulus Zxx
- 11,600 cm3
- Elastic Modulus Zyy
- 4,630 cm3
- Plastic Modulus Sxx
- 14,200 cm3
- Plastic Modulus Syy
- 7,110 cm3
- Radius of Gyration rxx
- 18.4 cm
- Radius of Gyration ryy
- 11 cm
- Cross-Sectional Area
- 808 cm2
- Buckling Parameter (u)
- 0.843
- Torsional Index (x)
- 5.46
- Warping Constant (Iw)
- 38.8 dm6
- Torsional Constant (It)
- 13,700 cm4
- Surface Area per Metre
- 2.52 m2/m
- Surface Area per Tonne
- 3.98 m2/t
356x406x551 UC
- Designation
- 356x406x551
- Serial Size
- 356x406
- Mass per Metre
- 551 kg/m
- Depth of Section (h)
- 455.6 mm
- Width of Section (b)
- 418.5 mm
- Web Thickness (tw)
- 42.1 mm
- Flange Thickness (tf)
- 67.5 mm
- Root Radius (r)
- 15.2 mm
- Depth Between Fillets (d)
- 290.2 mm
- Local Buckling Ratio d/tw
- 6.89
- Local Buckling Ratio cf/tf
- 3.1
- Second Moment of Area Ixx
- 227,000 cm4
- Second Moment of Area Iyy
- 82,700 cm4
- Elastic Modulus Zxx
- 9,960 cm3
- Elastic Modulus Zyy
- 3,950 cm3
- Plastic Modulus Sxx
- 12,100 cm3
- Plastic Modulus Syy
- 6,060 cm3
- Radius of Gyration rxx
- 18 cm
- Radius of Gyration ryy
- 10.9 cm
- Cross-Sectional Area
- 702 cm2
- Buckling Parameter (u)
- 0.841
- Torsional Index (x)
- 6.05
- Warping Constant (Iw)
- 31.1 dm6
- Torsional Constant (It)
- 9,240 cm4
- Surface Area per Metre
- 2.47 m2/m
- Surface Area per Tonne
- 4.48 m2/t
356x406x467 UC
- Designation
- 356x406x467
- Serial Size
- 356x406
- Mass per Metre
- 467 kg/m
- Depth of Section (h)
- 436.6 mm
- Width of Section (b)
- 412.2 mm
- Web Thickness (tw)
- 35.8 mm
- Flange Thickness (tf)
- 58 mm
- Root Radius (r)
- 15.2 mm
- Depth Between Fillets (d)
- 290.2 mm
- Local Buckling Ratio d/tw
- 8.11
- Local Buckling Ratio cf/tf
- 3.55
- Second Moment of Area Ixx
- 183,000 cm4
- Second Moment of Area Iyy
- 67,800 cm4
- Elastic Modulus Zxx
- 8,380 cm3
- Elastic Modulus Zyy
- 3,290 cm3
- Plastic Modulus Sxx
- 10,000 cm3
- Plastic Modulus Syy
- 5,030 cm3
- Radius of Gyration rxx
- 17.5 cm
- Radius of Gyration ryy
- 10.7 cm
- Cross-Sectional Area
- 595 cm2
- Buckling Parameter (u)
- 0.839
- Torsional Index (x)
- 6.86
- Warping Constant (Iw)
- 24.3 dm6
- Torsional Constant (It)
- 5,810 cm4
- Surface Area per Metre
- 2.42 m2/m
- Surface Area per Tonne
- 5.18 m2/t
356x406x393 UC
- Designation
- 356x406x393
- Serial Size
- 356x406
- Mass per Metre
- 393 kg/m
- Depth of Section (h)
- 419 mm
- Width of Section (b)
- 407 mm
- Web Thickness (tw)
- 30.6 mm
- Flange Thickness (tf)
- 49.2 mm
- Root Radius (r)
- 15.2 mm
- Depth Between Fillets (d)
- 290.2 mm
- Local Buckling Ratio d/tw
- 9.48
- Local Buckling Ratio cf/tf
- 4.14
- Second Moment of Area Ixx
- 147,000 cm4
- Second Moment of Area Iyy
- 55,400 cm4
- Elastic Modulus Zxx
- 7,000 cm3
- Elastic Modulus Zyy
- 2,720 cm3
- Plastic Modulus Sxx
- 8,220 cm3
- Plastic Modulus Syy
- 4,150 cm3
- Radius of Gyration rxx
- 17.1 cm
- Radius of Gyration ryy
- 10.5 cm
- Cross-Sectional Area
- 501 cm2
- Buckling Parameter (u)
- 0.837
- Torsional Index (x)
- 7.86
- Warping Constant (Iw)
- 18.9 dm6
- Torsional Constant (It)
- 3,550 cm4
- Surface Area per Metre
- 2.38 m2/m
- Surface Area per Tonne
- 6.06 m2/t
356x406x340 UC
- Designation
- 356x406x340
- Serial Size
- 356x406
- Mass per Metre
- 339.9 kg/m
- Depth of Section (h)
- 406.4 mm
- Width of Section (b)
- 403 mm
- Web Thickness (tw)
- 26.6 mm
- Flange Thickness (tf)
- 42.9 mm
- Root Radius (r)
- 15.2 mm
- Depth Between Fillets (d)
- 290.2 mm
- Local Buckling Ratio d/tw
- 10.9
- Local Buckling Ratio cf/tf
- 4.7
- Second Moment of Area Ixx
- 123,000 cm4
- Second Moment of Area Iyy
- 46,900 cm4
- Elastic Modulus Zxx
- 6,030 cm3
- Elastic Modulus Zyy
- 2,330 cm3
- Plastic Modulus Sxx
- 7,000 cm3
- Plastic Modulus Syy
- 3,540 cm3
- Radius of Gyration rxx
- 16.8 cm
- Radius of Gyration ryy
- 10.4 cm
- Cross-Sectional Area
- 433 cm2
- Buckling Parameter (u)
- 0.836
- Torsional Index (x)
- 8.85
- Warping Constant (Iw)
- 15.5 dm6
- Torsional Constant (It)
- 2,340 cm4
- Surface Area per Metre
- 2.35 m2/m
- Surface Area per Tonne
- 6.91 m2/t
356x406x287 UC
- Designation
- 356x406x287
- Serial Size
- 356x406
- Mass per Metre
- 287.1 kg/m
- Depth of Section (h)
- 393.6 mm
- Width of Section (b)
- 399 mm
- Web Thickness (tw)
- 22.6 mm
- Flange Thickness (tf)
- 36.5 mm
- Root Radius (r)
- 15.2 mm
- Depth Between Fillets (d)
- 290.2 mm
- Local Buckling Ratio d/tw
- 12.8
- Local Buckling Ratio cf/tf
- 5.47
- Second Moment of Area Ixx
- 99,900 cm4
- Second Moment of Area Iyy
- 38,700 cm4
- Elastic Modulus Zxx
- 5,070 cm3
- Elastic Modulus Zyy
- 1,940 cm3
- Plastic Modulus Sxx
- 5,810 cm3
- Plastic Modulus Syy
- 2,950 cm3
- Radius of Gyration rxx
- 16.5 cm
- Radius of Gyration ryy
- 10.3 cm
- Cross-Sectional Area
- 366 cm2
- Buckling Parameter (u)
- 0.835
- Torsional Index (x)
- 10.2
- Warping Constant (Iw)
- 12.3 dm6
- Torsional Constant (It)
- 1,440 cm4
- Surface Area per Metre
- 2.31 m2/m
- Surface Area per Tonne
- 8.05 m2/t
356x406x235 UC
- Designation
- 356x406x235
- Serial Size
- 356x406
- Mass per Metre
- 235.1 kg/m
- Depth of Section (h)
- 381 mm
- Width of Section (b)
- 394.8 mm
- Web Thickness (tw)
- 18.4 mm
- Flange Thickness (tf)
- 30.2 mm
- Root Radius (r)
- 15.2 mm
- Depth Between Fillets (d)
- 290.2 mm
- Local Buckling Ratio d/tw
- 15.8
- Local Buckling Ratio cf/tf
- 6.54
- Second Moment of Area Ixx
- 79,100 cm4
- Second Moment of Area Iyy
- 31,000 cm4
- Elastic Modulus Zxx
- 4,150 cm3
- Elastic Modulus Zyy
- 1,570 cm3
- Plastic Modulus Sxx
- 4,690 cm3
- Plastic Modulus Syy
- 2,380 cm3
- Radius of Gyration rxx
- 16.3 cm
- Radius of Gyration ryy
- 10.2 cm
- Cross-Sectional Area
- 300 cm2
- Buckling Parameter (u)
- 0.834
- Torsional Index (x)
- 12.1
- Warping Constant (Iw)
- 9.54 dm6
- Torsional Constant (It)
- 812 cm4
- Surface Area per Metre
- 2.28 m2/m
- Surface Area per Tonne
- 9.7 m2/t
356x406 UC — Overview
The 356x406 serial size group contains 7 sections, ranging from 235.1 kg/m to 633.9 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.