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RHS 90×50×7.1 - Section Properties

The RHS 90×50×7.1 is a rectangular hollow section with a mass of 13.6 kg/m, an overall depth of 90 mm and width of 50 mm and a wall thickness of 7.1 mm. It has a cross-sectional area of 17.3 cm², a second moment of area Iᵧ of 162 cm⁴, a plastic modulus Wₚₗ,ᵧ of 47.2 cm³, to BS EN 10210-2:2006 (SCI P363 Blue Book).

Mass
13.6 kg/m
Depth
90 mm
Width
50 mm
Wall thickness
7.1 mm
Area
17.3 cm²
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RHS 90×50×7.1 section profile
mass (kg/m)13.6
t (mm)7.1
Iy (cm⁴)162
Iz (cm⁴)60.9
iy (cm)3.06
iz (cm)1.88
Wel,y (cm³)36
Wel,z (cm³)24.4
Wpl,y (cm³)47.2
Wpl,z (cm³)30.5
A (cm²)17.3
SA/m (m²/m)0.262
SA/t (m²/t)19.3

Related RHS Hot-finished sizes

RHS 90×50×3.6RHS 90×50×4RHS 90×50×5RHS 90×50×6.3RHS 90×50×8RHS 100×50×3RHS 100×50×3.2RHS 100×50×3.6

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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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