300x250 RHS — Sizes, Dimensions & Properties
7 sizes in the 300x250 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) |
|---|---|---|---|---|---|---|---|
| 300x250x5.0 | 42.2 | 300 | 250 | 5 | 53.7 | 7,410 | 5,610 |
| 300x250x6.3 | 52.8 | 300 | 250 | 6.3 | 67.3 | 9,190 | 6,950 |
| 300x250x8.0 | 66.5 | 300 | 250 | 8 | 84.8 | 11,400 | 8,630 |
| 300x250x10.0 | 82.4 | 300 | 250 | 10 | 105 | 13,900 | 10,500 |
| 300x250x12.5 | 102 | 300 | 250 | 12.5 | 130 | 16,900 | 12,700 |
| 300x250x14.2 | 115 | 300 | 250 | 14.2 | 146 | 18,700 | 14,100 |
| 300x250x16.0 | 128 | 300 | 250 | 16 | 163 | 20,600 | 15,500 |
300x250x5.0 RHS
- Designation
- 300x250x5.0
- Outside Depth (D)
- 300 mm
- Outside Width (B)
- 250 mm
- Wall Thickness (t)
- 5 mm
- Mass per Metre
- 42.2 kg/m
- Cross-Sectional Area
- 53.7 cm2
- Second Moment of Area Ixx
- 7,410 cm4
- Second Moment of Area Iyy
- 5,610 cm4
- Elastic Modulus Zxx
- 494 cm3
- Elastic Modulus Zyy
- 449 cm3
- Plastic Modulus Sxx
- 575 cm3
- Plastic Modulus Syy
- 508 cm3
- Radius of Gyration rxx
- 11.7 cm
- Radius of Gyration ryy
- 10.2 cm
- Torsional Constant (It)
- 9,770 cm4
- Surface Area per Metre
- 1.09 m2/m
- Surface Area per Tonne
- 25.8 m2/t
300x250x6.3 RHS
- Designation
- 300x250x6.3
- Outside Depth (D)
- 300 mm
- Outside Width (B)
- 250 mm
- Wall Thickness (t)
- 6.3 mm
- Mass per Metre
- 52.8 kg/m
- Cross-Sectional Area
- 67.3 cm2
- Second Moment of Area Ixx
- 9,190 cm4
- Second Moment of Area Iyy
- 6,950 cm4
- Elastic Modulus Zxx
- 613 cm3
- Elastic Modulus Zyy
- 556 cm3
- Plastic Modulus Sxx
- 716 cm3
- Plastic Modulus Syy
- 633 cm3
- Radius of Gyration rxx
- 11.7 cm
- Radius of Gyration ryy
- 10.2 cm
- Torsional Constant (It)
- 12,200 cm4
- Surface Area per Metre
- 1.08 m2/m
- Surface Area per Tonne
- 20.5 m2/t
300x250x8.0 RHS
- Designation
- 300x250x8.0
- Outside Depth (D)
- 300 mm
- Outside Width (B)
- 250 mm
- Wall Thickness (t)
- 8 mm
- Mass per Metre
- 66.5 kg/m
- Cross-Sectional Area
- 84.8 cm2
- Second Moment of Area Ixx
- 11,400 cm4
- Second Moment of Area Iyy
- 8,630 cm4
- Elastic Modulus Zxx
- 761 cm3
- Elastic Modulus Zyy
- 690 cm3
- Plastic Modulus Sxx
- 896 cm3
- Plastic Modulus Syy
- 791 cm3
- Radius of Gyration rxx
- 11.6 cm
- Radius of Gyration ryy
- 10.1 cm
- Torsional Constant (It)
- 15,200 cm4
- Surface Area per Metre
- 1.08 m2/m
- Surface Area per Tonne
- 16.2 m2/t
300x250x10.0 RHS
- Designation
- 300x250x10.0
- Outside Depth (D)
- 300 mm
- Outside Width (B)
- 250 mm
- Wall Thickness (t)
- 10 mm
- Mass per Metre
- 82.4 kg/m
- Cross-Sectional Area
- 105 cm2
- Second Moment of Area Ixx
- 13,900 cm4
- Second Moment of Area Iyy
- 10,500 cm4
- Elastic Modulus Zxx
- 928 cm3
- Elastic Modulus Zyy
- 840 cm3
- Plastic Modulus Sxx
- 1,100 cm3
- Plastic Modulus Syy
- 971 cm3
- Radius of Gyration rxx
- 11.5 cm
- Radius of Gyration ryy
- 10 cm
- Torsional Constant (It)
- 18,600 cm4
- Surface Area per Metre
- 1.07 m2/m
- Surface Area per Tonne
- 13 m2/t
300x250x12.5 RHS
- Designation
- 300x250x12.5
- Outside Depth (D)
- 300 mm
- Outside Width (B)
- 250 mm
- Wall Thickness (t)
- 12.5 mm
- Mass per Metre
- 102 kg/m
- Cross-Sectional Area
- 130 cm2
- Second Moment of Area Ixx
- 16,900 cm4
- Second Moment of Area Iyy
- 12,700 cm4
- Elastic Modulus Zxx
- 1,120 cm3
- Elastic Modulus Zyy
- 1,010 cm3
- Plastic Modulus Sxx
- 1,350 cm3
- Plastic Modulus Syy
- 1,190 cm3
- Radius of Gyration rxx
- 11.4 cm
- Radius of Gyration ryy
- 9.89 cm
- Torsional Constant (It)
- 22,700 cm4
- Surface Area per Metre
- 1.07 m2/m
- Surface Area per Tonne
- 10.5 m2/t
300x250x14.2 RHS
- Designation
- 300x250x14.2
- Outside Depth (D)
- 300 mm
- Outside Width (B)
- 250 mm
- Wall Thickness (t)
- 14.2 mm
- Mass per Metre
- 115 kg/m
- Cross-Sectional Area
- 146 cm2
- Second Moment of Area Ixx
- 18,700 cm4
- Second Moment of Area Iyy
- 14,100 cm4
- Elastic Modulus Zxx
- 1,250 cm3
- Elastic Modulus Zyy
- 1,130 cm3
- Plastic Modulus Sxx
- 1,510 cm3
- Plastic Modulus Syy
- 1,330 cm3
- Radius of Gyration rxx
- 11.3 cm
- Radius of Gyration ryy
- 9.82 cm
- Torsional Constant (It)
- 25,400 cm4
- Surface Area per Metre
- 1.06 m2/m
- Surface Area per Tonne
- 9.2 m2/t
300x250x16.0 RHS
- Designation
- 300x250x16.0
- Outside Depth (D)
- 300 mm
- Outside Width (B)
- 250 mm
- Wall Thickness (t)
- 16 mm
- Mass per Metre
- 128 kg/m
- Cross-Sectional Area
- 163 cm2
- Second Moment of Area Ixx
- 20,600 cm4
- Second Moment of Area Iyy
- 15,500 cm4
- Elastic Modulus Zxx
- 1,380 cm3
- Elastic Modulus Zyy
- 1,240 cm3
- Plastic Modulus Sxx
- 1,670 cm3
- Plastic Modulus Syy
- 1,470 cm3
- Radius of Gyration rxx
- 11.2 cm
- Radius of Gyration ryy
- 9.74 cm
- Torsional Constant (It)
- 28,100 cm4
- Surface Area per Metre
- 1.06 m2/m
- Surface Area per Tonne
- 8.3 m2/t
300x250 RHS — Overview
The 300x250 serial size group contains 7 sections, ranging from 128 kg/m to 42.2 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.