100x100 SHS — Sizes, Dimensions & Properties

7 sizes in the 100x100 serial size group. All dimensions in mm, section properties in cm units.

Designation	Mass (kg/m)	D (mm)	t (mm)	A (cm2)	I (cm4)	Z (cm3)	S (cm3)	r (cm)
100x100x3.6	10.8	100	3.6	13.7	212	42.3	49.5	3.92
100x100x4.0	11.9	100	4	15.2	232	46.4	54.4	3.91
100x100x5.0	14.7	100	5	18.7	279	55.9	66.4	3.86
100x100x6.0	17.4	100	6	22.2	323	64.6	77.6	3.82
100x100x6.3	18.2	100	6.3	23.2	336	67.1	80.9	3.8
100x100x8.0	22.6	100	8	28.8	400	79.9	98.2	3.73
100x100x10.0	27.4	100	10	34.9	462	92.4	116	3.64

100x100x3.6 SHS

Designation: 100x100x3.6
Outside Dimension (D): 100 mm
Wall Thickness (t): 3.6 mm
Mass per Metre: 10.8 kg/m
Cross-Sectional Area: 13.7 cm2
Second Moment of Area I: 212 cm4
Elastic Modulus Z: 42.3 cm3
Plastic Modulus S: 49.5 cm3
Radius of Gyration r: 3.92 cm
Torsional Constant (It): 328 cm4
Surface Area per Metre: 0.391 m2/m
Surface Area per Tonne: 36.2 m2/t

100x100x4.0 SHS

Designation: 100x100x4.0
Outside Dimension (D): 100 mm
Wall Thickness (t): 4 mm
Mass per Metre: 11.9 kg/m
Cross-Sectional Area: 15.2 cm2
Second Moment of Area I: 232 cm4
Elastic Modulus Z: 46.4 cm3
Plastic Modulus S: 54.4 cm3
Radius of Gyration r: 3.91 cm
Torsional Constant (It): 361 cm4
Surface Area per Metre: 0.39 m2/m
Surface Area per Tonne: 32.8 m2/t

100x100x5.0 SHS

Designation: 100x100x5.0
Outside Dimension (D): 100 mm
Wall Thickness (t): 5 mm
Mass per Metre: 14.7 kg/m
Cross-Sectional Area: 18.7 cm2
Second Moment of Area I: 279 cm4
Elastic Modulus Z: 55.9 cm3
Plastic Modulus S: 66.4 cm3
Radius of Gyration r: 3.86 cm
Torsional Constant (It): 439 cm4
Surface Area per Metre: 0.387 m2/m
Surface Area per Tonne: 26.3 m2/t

100x100x6.0 SHS

Designation: 100x100x6.0
Outside Dimension (D): 100 mm
Wall Thickness (t): 6 mm
Mass per Metre: 17.4 kg/m
Cross-Sectional Area: 22.2 cm2
Second Moment of Area I: 323 cm4
Elastic Modulus Z: 64.6 cm3
Plastic Modulus S: 77.6 cm3
Radius of Gyration r: 3.82 cm
Torsional Constant (It): 513 cm4
Surface Area per Metre: 0.385 m2/m
Surface Area per Tonne: 22.1 m2/t

100x100x6.3 SHS

Designation: 100x100x6.3
Outside Dimension (D): 100 mm
Wall Thickness (t): 6.3 mm
Mass per Metre: 18.2 kg/m
Cross-Sectional Area: 23.2 cm2
Second Moment of Area I: 336 cm4
Elastic Modulus Z: 67.1 cm3
Plastic Modulus S: 80.9 cm3
Radius of Gyration r: 3.8 cm
Torsional Constant (It): 534 cm4
Surface Area per Metre: 0.384 m2/m
Surface Area per Tonne: 21.1 m2/t

100x100x8.0 SHS

Designation: 100x100x8.0
Outside Dimension (D): 100 mm
Wall Thickness (t): 8 mm
Mass per Metre: 22.6 kg/m
Cross-Sectional Area: 28.8 cm2
Second Moment of Area I: 400 cm4
Elastic Modulus Z: 79.9 cm3
Plastic Modulus S: 98.2 cm3
Radius of Gyration r: 3.73 cm
Torsional Constant (It): 646 cm4
Surface Area per Metre: 0.379 m2/m
Surface Area per Tonne: 16.8 m2/t

100x100x10.0 SHS

Designation: 100x100x10.0
Outside Dimension (D): 100 mm
Wall Thickness (t): 10 mm
Mass per Metre: 27.4 kg/m
Cross-Sectional Area: 34.9 cm2
Second Moment of Area I: 462 cm4
Elastic Modulus Z: 92.4 cm3
Plastic Modulus S: 116 cm3
Radius of Gyration r: 3.64 cm
Torsional Constant (It): 761 cm4
Surface Area per Metre: 0.374 m2/m
Surface Area per Tonne: 13.6 m2/t

100x100 SHS — Overview

The 100x100 serial size group contains 7 sections, ranging from 27.4 kg/m to 10.8 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.