75x75 EA — Sizes, Dimensions & Properties

2 sizes in the 75x75 serial size group. All dimensions in mm, section properties in cm units.

DesignationMass (kg/m)Leg (mm)t (mm)A (cm2)Ixx (cm4)rxx (cm)rv (cm)
75x75x66.857568.7345.82.291.47
75x75x88.9975811.459.12.271.46

75x75x6 EA

Designation
75x75x6
Mass per Metre
6.85 kg/m
Leg Length
75 mm
Thickness (t)
6 mm
Root Radius (r)
9 mm
Toe Radius (r2)
4.5 mm
Cross-Sectional Area
8.73 cm2
Centroid Distance cx
2.05 cm
Centroid Distance cy
2.05 cm
Second Moment of Area Ixx
45.8 cm4
Second Moment of Area Iyy
45.8 cm4
Radius of Gyration rxx
2.29 cm
Radius of Gyration ryy
2.29 cm
Elastic Modulus Zxx
8.41 cm3
Elastic Modulus Zyy
8.41 cm3
Second Moment of Area Iu
72.7 cm4
Second Moment of Area Iv
18.9 cm4
Radius of Gyration ru
2.89 cm
Radius of Gyration rv
1.47 cm
tan(alpha)
1

75x75x8 EA

Designation
75x75x8
Mass per Metre
8.99 kg/m
Leg Length
75 mm
Thickness (t)
8 mm
Root Radius (r)
9 mm
Toe Radius (r2)
4.5 mm
Cross-Sectional Area
11.4 cm2
Centroid Distance cx
2.14 cm
Centroid Distance cy
2.14 cm
Second Moment of Area Ixx
59.1 cm4
Second Moment of Area Iyy
59.1 cm4
Radius of Gyration rxx
2.27 cm
Radius of Gyration ryy
2.27 cm
Elastic Modulus Zxx
11 cm3
Elastic Modulus Zyy
11 cm3
Second Moment of Area Iu
93.8 cm4
Second Moment of Area Iv
24.5 cm4
Radius of Gyration ru
2.86 cm
Radius of Gyration rv
1.46 cm
tan(alpha)
1

75x75 EA — Overview

The 75x75 serial size group contains 2 sections, ranging from 8.99 kg/m to 6.85 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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