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RHS 80×40×3.6 - Section Properties

The RHS 80×40×3.6 is a rectangular hollow section with a mass of 6.27 kg/m, an overall depth of 80 mm and width of 40 mm and a wall thickness of 3.6 mm. It has a cross-sectional area of 7.98 cm², a second moment of area Iᵧ of 62.8 cm⁴, a plastic modulus Wₚₗ,ᵧ of 20 cm³, to BS EN 10210-2:2006 (SCI P363 Blue Book).

Mass
6.27 kg/m
Depth
80 mm
Width
40 mm
Wall thickness
3.6 mm
Area
7.98 cm²
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RHS 80×40×3.6 section profile
mass (kg/m)6.27
t (mm)3.6
Iy (cm⁴)62.8
Iz (cm⁴)20.6
iy (cm)2.81
iz (cm)1.61
Wel,y (cm³)15.7
Wel,z (cm³)10.3
Wpl,y (cm³)20
Wpl,z (cm³)12.1
A (cm²)7.98
SA/m (m²/m)0.231
SA/t (m²/t)37

Related RHS Hot-finished sizes

RHS 60×40×5RHS 60×40×6.3RHS 80×40×3RHS 80×40×3.2RHS 80×40×4RHS 80×40×5RHS 80×40×6.3RHS 80×40×7.1

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📘 How to read a steel section table (UB, UC, IPE, HE)📘 Section modulus explained: elastic (Wel) vs plastic (Wpl)📘 SHS vs RHS vs CHS: choosing a hollow steel section
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