450x250 RHS — Sizes, Dimensions & Properties

6 sizes in the 450x250 serial size group. All dimensions in mm, section properties in cm units.

DesignationMass (kg/m)D (mm)B (mm)t (mm)A (cm2)Ixx (cm4)Iyy (cm4)
450x250x8.085.4450250810930,08212,142
450x250x10.01064502501013536,89514,819
450x250x12.01264502501216143,43417,359
450x250x12.513145025012.516745,02617,973
450x250x14.214845025014.218950,30020,000
450x250x16.01664502501621155,70522,041

450x250x8.0 RHS

Designation
450x250x8.0
Outside Depth (D)
450 mm
Outside Width (B)
250 mm
Wall Thickness (t)
8 mm
Mass per Metre
85.4 kg/m
Cross-Sectional Area
109 cm2
Second Moment of Area Ixx
30,082 cm4
Second Moment of Area Iyy
12,142 cm4
Elastic Modulus Zxx
1,337 cm3
Elastic Modulus Zyy
971 cm3
Plastic Modulus Sxx
1,622 cm3
Plastic Modulus Syy
1,081 cm3
Radius of Gyration rxx
16.6 cm
Radius of Gyration ryy
10.6 cm
Torsional Constant (It)
27,083 cm4
Surface Area per Metre
1.38 m2/m
Surface Area per Tonne
16.2 m2/t

450x250x10.0 RHS

Designation
450x250x10.0
Outside Depth (D)
450 mm
Outside Width (B)
250 mm
Wall Thickness (t)
10 mm
Mass per Metre
106 kg/m
Cross-Sectional Area
135 cm2
Second Moment of Area Ixx
36,895 cm4
Second Moment of Area Iyy
14,819 cm4
Elastic Modulus Zxx
1,640 cm3
Elastic Modulus Zyy
1,185 cm3
Plastic Modulus Sxx
2,000 cm3
Plastic Modulus Syy
1,331 cm3
Radius of Gyration rxx
16.5 cm
Radius of Gyration ryy
10.5 cm
Torsional Constant (It)
33,284 cm4
Surface Area per Metre
1.37 m2/m
Surface Area per Tonne
12.9 m2/t

450x250x12.0 RHS

Designation
450x250x12.0
Outside Depth (D)
450 mm
Outside Width (B)
250 mm
Wall Thickness (t)
12 mm
Mass per Metre
126 kg/m
Cross-Sectional Area
161 cm2
Second Moment of Area Ixx
43,434 cm4
Second Moment of Area Iyy
17,359 cm4
Elastic Modulus Zxx
1,930 cm3
Elastic Modulus Zyy
1,389 cm3
Plastic Modulus Sxx
2,367 cm3
Plastic Modulus Syy
1,572 cm3
Radius of Gyration rxx
16.4 cm
Radius of Gyration ryy
10.4 cm
Torsional Constant (It)
39,260 cm4
Surface Area per Metre
1.37 m2/m
Surface Area per Tonne
10.9 m2/t

450x250x12.5 RHS

Designation
450x250x12.5
Outside Depth (D)
450 mm
Outside Width (B)
250 mm
Wall Thickness (t)
12.5 mm
Mass per Metre
131 kg/m
Cross-Sectional Area
167 cm2
Second Moment of Area Ixx
45,026 cm4
Second Moment of Area Iyy
17,973 cm4
Elastic Modulus Zxx
2,001 cm3
Elastic Modulus Zyy
1,438 cm3
Plastic Modulus Sxx
2,458 cm3
Plastic Modulus Syy
1,631 cm3
Radius of Gyration rxx
16.4 cm
Radius of Gyration ryy
10.4 cm
Torsional Constant (It)
40,719 cm4
Surface Area per Metre
1.37 m2/m
Surface Area per Tonne
10.5 m2/t

450x250x14.2 RHS

Designation
450x250x14.2
Outside Depth (D)
450 mm
Outside Width (B)
250 mm
Wall Thickness (t)
14.2 mm
Mass per Metre
148 kg/m
Cross-Sectional Area
189 cm2
Second Moment of Area Ixx
50,300 cm4
Second Moment of Area Iyy
20,000 cm4
Elastic Modulus Zxx
2,240 cm3
Elastic Modulus Zyy
1,600 cm3
Plastic Modulus Sxx
2,760 cm3
Plastic Modulus Syy
1,830 cm3
Radius of Gyration rxx
16.3 cm
Radius of Gyration ryy
10.3 cm
Torsional Constant (It)
45,600 cm4
Surface Area per Metre
1.36 m2/m
Surface Area per Tonne
9.2 m2/t

450x250x16.0 RHS

Designation
450x250x16.0
Outside Depth (D)
450 mm
Outside Width (B)
250 mm
Wall Thickness (t)
16 mm
Mass per Metre
166 kg/m
Cross-Sectional Area
211 cm2
Second Moment of Area Ixx
55,705 cm4
Second Moment of Area Iyy
22,041 cm4
Elastic Modulus Zxx
2,476 cm3
Elastic Modulus Zyy
1,763 cm3
Plastic Modulus Sxx
3,070 cm3
Plastic Modulus Syy
2,029 cm3
Radius of Gyration rxx
16.2 cm
Radius of Gyration ryy
10.2 cm
Torsional Constant (It)
50,545 cm4
Surface Area per Metre
1.36 m2/m
Surface Area per Tonne
8.2 m2/t

450x250 RHS — Overview

The 450x250 serial size group contains 6 sections, ranging from 166 kg/m to 85.4 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.

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