180x180 SHS — Sizes, Dimensions & Properties

8 sizes in the 180x180 serial size group. All dimensions in mm, section properties in cm units.

DesignationMass (kg/m)D (mm)t (mm)A (cm2)I (cm4)Z (cm3)S (cm3)r (cm)
180x180x5.027.3180534.71,7651962277.13
180x180x6.032.5180641.42,0772312697.09
180x180x6.3341806.343.32,1682412817.07
180x180x8.042.7180854.42,6612963497
180x180x10.052.51801066.93,1933554246.91
180x180x12.062.11801279.13,6774094946.82
180x180x12.564.418012.582.13,7904215116.8
180x180x16.080.2180161024,5045006216.64

180x180x5.0 SHS

Designation
180x180x5.0
Outside Dimension (D)
180 mm
Wall Thickness (t)
5 mm
Mass per Metre
27.3 kg/m
Cross-Sectional Area
34.7 cm2
Second Moment of Area I
1,765 cm4
Elastic Modulus Z
196 cm3
Plastic Modulus S
227 cm3
Radius of Gyration r
7.13 cm
Torsional Constant (It)
2,718 cm4
Surface Area per Metre
0.707 m2/m
Surface Area per Tonne
25.9 m2/t

180x180x6.0 SHS

Designation
180x180x6.0
Outside Dimension (D)
180 mm
Wall Thickness (t)
6 mm
Mass per Metre
32.5 kg/m
Cross-Sectional Area
41.4 cm2
Second Moment of Area I
2,077 cm4
Elastic Modulus Z
231 cm3
Plastic Modulus S
269 cm3
Radius of Gyration r
7.09 cm
Torsional Constant (It)
3,215 cm4
Surface Area per Metre
0.705 m2/m
Surface Area per Tonne
21.7 m2/t

180x180x6.3 SHS

Designation
180x180x6.3
Outside Dimension (D)
180 mm
Wall Thickness (t)
6.3 mm
Mass per Metre
34 kg/m
Cross-Sectional Area
43.3 cm2
Second Moment of Area I
2,168 cm4
Elastic Modulus Z
241 cm3
Plastic Modulus S
281 cm3
Radius of Gyration r
7.07 cm
Torsional Constant (It)
3,361 cm4
Surface Area per Metre
0.704 m2/m
Surface Area per Tonne
20.7 m2/t

180x180x8.0 SHS

Designation
180x180x8.0
Outside Dimension (D)
180 mm
Wall Thickness (t)
8 mm
Mass per Metre
42.7 kg/m
Cross-Sectional Area
54.4 cm2
Second Moment of Area I
2,661 cm4
Elastic Modulus Z
296 cm3
Plastic Modulus S
349 cm3
Radius of Gyration r
7 cm
Torsional Constant (It)
4,162 cm4
Surface Area per Metre
0.699 m2/m
Surface Area per Tonne
16.4 m2/t

180x180x10.0 SHS

Designation
180x180x10.0
Outside Dimension (D)
180 mm
Wall Thickness (t)
10 mm
Mass per Metre
52.5 kg/m
Cross-Sectional Area
66.9 cm2
Second Moment of Area I
3,193 cm4
Elastic Modulus Z
355 cm3
Plastic Modulus S
424 cm3
Radius of Gyration r
6.91 cm
Torsional Constant (It)
5,048 cm4
Surface Area per Metre
0.694 m2/m
Surface Area per Tonne
13.2 m2/t

180x180x12.0 SHS

Designation
180x180x12.0
Outside Dimension (D)
180 mm
Wall Thickness (t)
12 mm
Mass per Metre
62.1 kg/m
Cross-Sectional Area
79.1 cm2
Second Moment of Area I
3,677 cm4
Elastic Modulus Z
409 cm3
Plastic Modulus S
494 cm3
Radius of Gyration r
6.82 cm
Torsional Constant (It)
5,873 cm4
Surface Area per Metre
0.689 m2/m
Surface Area per Tonne
11.1 m2/t

180x180x12.5 SHS

Designation
180x180x12.5
Outside Dimension (D)
180 mm
Wall Thickness (t)
12.5 mm
Mass per Metre
64.4 kg/m
Cross-Sectional Area
82.1 cm2
Second Moment of Area I
3,790 cm4
Elastic Modulus Z
421 cm3
Plastic Modulus S
511 cm3
Radius of Gyration r
6.8 cm
Torsional Constant (It)
6,070 cm4
Surface Area per Metre
0.688 m2/m
Surface Area per Tonne
10.7 m2/t

180x180x16.0 SHS

Designation
180x180x16.0
Outside Dimension (D)
180 mm
Wall Thickness (t)
16 mm
Mass per Metre
80.2 kg/m
Cross-Sectional Area
102 cm2
Second Moment of Area I
4,504 cm4
Elastic Modulus Z
500 cm3
Plastic Modulus S
621 cm3
Radius of Gyration r
6.64 cm
Torsional Constant (It)
7,343 cm4
Surface Area per Metre
0.679 m2/m
Surface Area per Tonne
8.5 m2/t

180x180 SHS — Overview

The 180x180 serial size group contains 8 sections, ranging from 80.2 kg/m to 27.3 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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