400x120 RHS — Sizes, Dimensions & Properties
7 sizes in the 400x120 serial size group. All dimensions in mm, section properties in cm units.
| Designation | Mass (kg/m) | D (mm) | B (mm) | t (mm) | A (cm2) | Ixx (cm4) | Iyy (cm4) |
|---|---|---|---|---|---|---|---|
| 400x120x5.0 | 39.8 | 400 | 120 | 5 | 50.7 | 9,520 | 1,420 |
| 400x120x6.3 | 49.9 | 400 | 120 | 6.3 | 63.5 | 11,800 | 1,740 |
| 400x120x8.0 | 62.8 | 400 | 120 | 8 | 80 | 14,600 | 2,130 |
| 400x120x10.0 | 77.7 | 400 | 120 | 10 | 98.9 | 17,800 | 2,550 |
| 400x120x12.5 | 95.8 | 400 | 120 | 12.5 | 122 | 21,600 | 3,010 |
| 400x120x14.2 | 108 | 400 | 120 | 14.2 | 137 | 23,900 | 3,290 |
| 400x120x16.0 | 120 | 400 | 120 | 16 | 153 | 26,300 | 3,560 |
400x120x5.0 RHS
- Designation
- 400x120x5.0
- Outside Depth (D)
- 400 mm
- Outside Width (B)
- 120 mm
- Wall Thickness (t)
- 5 mm
- Mass per Metre
- 39.8 kg/m
- Cross-Sectional Area
- 50.7 cm2
- Second Moment of Area Ixx
- 9,520 cm4
- Second Moment of Area Iyy
- 1,420 cm4
- Elastic Modulus Zxx
- 476 cm3
- Elastic Modulus Zyy
- 237 cm3
- Plastic Modulus Sxx
- 612 cm3
- Plastic Modulus Syy
- 259 cm3
- Radius of Gyration rxx
- 13.7 cm
- Radius of Gyration ryy
- 5.3 cm
- Torsional Constant (It)
- 4,090 cm4
- Surface Area per Metre
- 1.03 m2/m
- Surface Area per Tonne
- 25.9 m2/t
400x120x6.3 RHS
- Designation
- 400x120x6.3
- Outside Depth (D)
- 400 mm
- Outside Width (B)
- 120 mm
- Wall Thickness (t)
- 6.3 mm
- Mass per Metre
- 49.9 kg/m
- Cross-Sectional Area
- 63.5 cm2
- Second Moment of Area Ixx
- 11,800 cm4
- Second Moment of Area Iyy
- 1,740 cm4
- Elastic Modulus Zxx
- 590 cm3
- Elastic Modulus Zyy
- 291 cm3
- Plastic Modulus Sxx
- 762 cm3
- Plastic Modulus Syy
- 320 cm3
- Radius of Gyration rxx
- 13.6 cm
- Radius of Gyration ryy
- 5.24 cm
- Torsional Constant (It)
- 5,040 cm4
- Surface Area per Metre
- 1.02 m2/m
- Surface Area per Tonne
- 20.4 m2/t
400x120x8.0 RHS
- Designation
- 400x120x8.0
- Outside Depth (D)
- 400 mm
- Outside Width (B)
- 120 mm
- Wall Thickness (t)
- 8 mm
- Mass per Metre
- 62.8 kg/m
- Cross-Sectional Area
- 80 cm2
- Second Moment of Area Ixx
- 14,600 cm4
- Second Moment of Area Iyy
- 2,130 cm4
- Elastic Modulus Zxx
- 732 cm3
- Elastic Modulus Zyy
- 356 cm3
- Plastic Modulus Sxx
- 952 cm3
- Plastic Modulus Syy
- 397 cm3
- Radius of Gyration rxx
- 13.5 cm
- Radius of Gyration ryy
- 5.17 cm
- Torsional Constant (It)
- 6,220 cm4
- Surface Area per Metre
- 1.02 m2/m
- Surface Area per Tonne
- 16.2 m2/t
400x120x10.0 RHS
- Designation
- 400x120x10.0
- Outside Depth (D)
- 400 mm
- Outside Width (B)
- 120 mm
- Wall Thickness (t)
- 10 mm
- Mass per Metre
- 77.7 kg/m
- Cross-Sectional Area
- 98.9 cm2
- Second Moment of Area Ixx
- 17,800 cm4
- Second Moment of Area Iyy
- 2,550 cm4
- Elastic Modulus Zxx
- 891 cm3
- Elastic Modulus Zyy
- 425 cm3
- Plastic Modulus Sxx
- 1,170 cm3
- Plastic Modulus Syy
- 483 cm3
- Radius of Gyration rxx
- 13.4 cm
- Radius of Gyration ryy
- 5.08 cm
- Torsional Constant (It)
- 7,510 cm4
- Surface Area per Metre
- 1.01 m2/m
- Surface Area per Tonne
- 13 m2/t
400x120x12.5 RHS
- Designation
- 400x120x12.5
- Outside Depth (D)
- 400 mm
- Outside Width (B)
- 120 mm
- Wall Thickness (t)
- 12.5 mm
- Mass per Metre
- 95.8 kg/m
- Cross-Sectional Area
- 122 cm2
- Second Moment of Area Ixx
- 21,600 cm4
- Second Moment of Area Iyy
- 3,010 cm4
- Elastic Modulus Zxx
- 1,080 cm3
- Elastic Modulus Zyy
- 502 cm3
- Plastic Modulus Sxx
- 1,430 cm3
- Plastic Modulus Syy
- 583 cm3
- Radius of Gyration rxx
- 13.3 cm
- Radius of Gyration ryy
- 4.97 cm
- Torsional Constant (It)
- 8,980 cm4
- Surface Area per Metre
- 1.01 m2/m
- Surface Area per Tonne
- 10.5 m2/t
400x120x14.2 RHS
- Designation
- 400x120x14.2
- Outside Depth (D)
- 400 mm
- Outside Width (B)
- 120 mm
- Wall Thickness (t)
- 14.2 mm
- Mass per Metre
- 108 kg/m
- Cross-Sectional Area
- 137 cm2
- Second Moment of Area Ixx
- 23,900 cm4
- Second Moment of Area Iyy
- 3,290 cm4
- Elastic Modulus Zxx
- 1,200 cm3
- Elastic Modulus Zyy
- 549 cm3
- Plastic Modulus Sxx
- 1,590 cm3
- Plastic Modulus Syy
- 646 cm3
- Radius of Gyration rxx
- 13.2 cm
- Radius of Gyration ryy
- 4.89 cm
- Torsional Constant (It)
- 9,890 cm4
- Surface Area per Metre
- 1 m2/m
- Surface Area per Tonne
- 9.3 m2/t
400x120x16.0 RHS
- Designation
- 400x120x16.0
- Outside Depth (D)
- 400 mm
- Outside Width (B)
- 120 mm
- Wall Thickness (t)
- 16 mm
- Mass per Metre
- 120 kg/m
- Cross-Sectional Area
- 153 cm2
- Second Moment of Area Ixx
- 26,300 cm4
- Second Moment of Area Iyy
- 3,560 cm4
- Elastic Modulus Zxx
- 1,320 cm3
- Elastic Modulus Zyy
- 593 cm3
- Plastic Modulus Sxx
- 1,760 cm3
- Plastic Modulus Syy
- 709 cm3
- Radius of Gyration rxx
- 13.1 cm
- Radius of Gyration ryy
- 4.82 cm
- Torsional Constant (It)
- 10,800 cm4
- Surface Area per Metre
- 0.999 m2/m
- Surface Area per Tonne
- 8.3 m2/t
400x120 RHS — Overview
The 400x120 serial size group contains 7 sections, ranging from 120 kg/m to 39.8 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.