180x100 RHS — Sizes, Dimensions & Properties
8 sizes in the 180x100 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) |
|---|---|---|---|---|---|---|---|
| 180x100x4.0 | 16.9 | 180 | 100 | 4 | 21.6 | 945 | 379 |
| 180x100x5.0 | 21 | 180 | 100 | 5 | 26.7 | 1,153 | 460 |
| 180x100x6.0 | 24.9 | 180 | 100 | 6 | 31.8 | 1,350 | 536 |
| 180x100x6.3 | 26.1 | 180 | 100 | 6.3 | 33.3 | 1,407 | 557 |
| 180x100x8.0 | 32.6 | 180 | 100 | 8 | 41.6 | 1,713 | 671 |
| 180x100x10.0 | 40 | 180 | 100 | 10 | 50.9 | 2,036 | 787 |
| 180x100x12.0 | 47 | 180 | 100 | 12 | 59.9 | 2,320 | 886 |
| 180x100x12.5 | 48.7 | 180 | 100 | 12.5 | 62.1 | 2,385 | 908 |
180x100x4.0 RHS
- Designation
- 180x100x4.0
- Outside Depth (D)
- 180 mm
- Outside Width (B)
- 100 mm
- Wall Thickness (t)
- 4 mm
- Mass per Metre
- 16.9 kg/m
- Cross-Sectional Area
- 21.6 cm2
- Second Moment of Area Ixx
- 945 cm4
- Second Moment of Area Iyy
- 379 cm4
- Elastic Modulus Zxx
- 105 cm3
- Elastic Modulus Zyy
- 75.9 cm3
- Plastic Modulus Sxx
- 128 cm3
- Plastic Modulus Syy
- 85.2 cm3
- Radius of Gyration rxx
- 6.61 cm
- Radius of Gyration ryy
- 4.19 cm
- Torsional Constant (It)
- 852 cm4
- Surface Area per Metre
- 0.55 m2/m
- Surface Area per Tonne
- 32.5 m2/t
180x100x5.0 RHS
- Designation
- 180x100x5.0
- Outside Depth (D)
- 180 mm
- Outside Width (B)
- 100 mm
- Wall Thickness (t)
- 5 mm
- Mass per Metre
- 21 kg/m
- Cross-Sectional Area
- 26.7 cm2
- Second Moment of Area Ixx
- 1,153 cm4
- Second Moment of Area Iyy
- 460 cm4
- Elastic Modulus Zxx
- 128 cm3
- Elastic Modulus Zyy
- 92 cm3
- Plastic Modulus Sxx
- 157 cm3
- Plastic Modulus Syy
- 104 cm3
- Radius of Gyration rxx
- 6.57 cm
- Radius of Gyration ryy
- 4.15 cm
- Torsional Constant (It)
- 1,042 cm4
- Surface Area per Metre
- 0.547 m2/m
- Surface Area per Tonne
- 26 m2/t
180x100x6.0 RHS
- Designation
- 180x100x6.0
- Outside Depth (D)
- 180 mm
- Outside Width (B)
- 100 mm
- Wall Thickness (t)
- 6 mm
- Mass per Metre
- 24.9 kg/m
- Cross-Sectional Area
- 31.8 cm2
- Second Moment of Area Ixx
- 1,350 cm4
- Second Moment of Area Iyy
- 536 cm4
- Elastic Modulus Zxx
- 150 cm3
- Elastic Modulus Zyy
- 107 cm3
- Plastic Modulus Sxx
- 186 cm3
- Plastic Modulus Syy
- 123 cm3
- Radius of Gyration rxx
- 6.52 cm
- Radius of Gyration ryy
- 4.11 cm
- Torsional Constant (It)
- 1,224 cm4
- Surface Area per Metre
- 0.545 m2/m
- Surface Area per Tonne
- 21.9 m2/t
180x100x6.3 RHS
- Designation
- 180x100x6.3
- Outside Depth (D)
- 180 mm
- Outside Width (B)
- 100 mm
- Wall Thickness (t)
- 6.3 mm
- Mass per Metre
- 26.1 kg/m
- Cross-Sectional Area
- 33.3 cm2
- Second Moment of Area Ixx
- 1,407 cm4
- Second Moment of Area Iyy
- 557 cm4
- Elastic Modulus Zxx
- 156 cm3
- Elastic Modulus Zyy
- 111 cm3
- Plastic Modulus Sxx
- 194 cm3
- Plastic Modulus Syy
- 128 cm3
- Radius of Gyration rxx
- 6.5 cm
- Radius of Gyration ryy
- 4.09 cm
- Torsional Constant (It)
- 1,277 cm4
- Surface Area per Metre
- 0.544 m2/m
- Surface Area per Tonne
- 20.8 m2/t
180x100x8.0 RHS
- Designation
- 180x100x8.0
- Outside Depth (D)
- 180 mm
- Outside Width (B)
- 100 mm
- Wall Thickness (t)
- 8 mm
- Mass per Metre
- 32.6 kg/m
- Cross-Sectional Area
- 41.6 cm2
- Second Moment of Area Ixx
- 1,713 cm4
- Second Moment of Area Iyy
- 671 cm4
- Elastic Modulus Zxx
- 190 cm3
- Elastic Modulus Zyy
- 134 cm3
- Plastic Modulus Sxx
- 239 cm3
- Plastic Modulus Syy
- 157 cm3
- Radius of Gyration rxx
- 6.42 cm
- Radius of Gyration ryy
- 4.02 cm
- Torsional Constant (It)
- 1,560 cm4
- Surface Area per Metre
- 0.539 m2/m
- Surface Area per Tonne
- 16.5 m2/t
180x100x10.0 RHS
- Designation
- 180x100x10.0
- Outside Depth (D)
- 180 mm
- Outside Width (B)
- 100 mm
- Wall Thickness (t)
- 10 mm
- Mass per Metre
- 40 kg/m
- Cross-Sectional Area
- 50.9 cm2
- Second Moment of Area Ixx
- 2,036 cm4
- Second Moment of Area Iyy
- 787 cm4
- Elastic Modulus Zxx
- 226 cm3
- Elastic Modulus Zyy
- 157 cm3
- Plastic Modulus Sxx
- 288 cm3
- Plastic Modulus Syy
- 188 cm3
- Radius of Gyration rxx
- 6.32 cm
- Radius of Gyration ryy
- 3.93 cm
- Torsional Constant (It)
- 1,862 cm4
- Surface Area per Metre
- 0.534 m2/m
- Surface Area per Tonne
- 13.4 m2/t
180x100x12.0 RHS
- Designation
- 180x100x12.0
- Outside Depth (D)
- 180 mm
- Outside Width (B)
- 100 mm
- Wall Thickness (t)
- 12 mm
- Mass per Metre
- 47 kg/m
- Cross-Sectional Area
- 59.9 cm2
- Second Moment of Area Ixx
- 2,320 cm4
- Second Moment of Area Iyy
- 886 cm4
- Elastic Modulus Zxx
- 258 cm3
- Elastic Modulus Zyy
- 177 cm3
- Plastic Modulus Sxx
- 333 cm3
- Plastic Modulus Syy
- 216 cm3
- Radius of Gyration rxx
- 6.22 cm
- Radius of Gyration ryy
- 3.85 cm
- Torsional Constant (It)
- 2,130 cm4
- Surface Area per Metre
- 0.529 m2/m
- Surface Area per Tonne
- 11.3 m2/t
180x100x12.5 RHS
- Designation
- 180x100x12.5
- Outside Depth (D)
- 180 mm
- Outside Width (B)
- 100 mm
- Wall Thickness (t)
- 12.5 mm
- Mass per Metre
- 48.7 kg/m
- Cross-Sectional Area
- 62.1 cm2
- Second Moment of Area Ixx
- 2,385 cm4
- Second Moment of Area Iyy
- 908 cm4
- Elastic Modulus Zxx
- 265 cm3
- Elastic Modulus Zyy
- 182 cm3
- Plastic Modulus Sxx
- 344 cm3
- Plastic Modulus Syy
- 223 cm3
- Radius of Gyration rxx
- 6.2 cm
- Radius of Gyration ryy
- 3.82 cm
- Torsional Constant (It)
- 2,191 cm4
- Surface Area per Metre
- 0.528 m2/m
- Surface Area per Tonne
- 10.8 m2/t
180x100 RHS — Overview
The 180x100 serial size group contains 8 sections, ranging from 48.7 kg/m to 16.9 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.