RHS · EN 10210 · hot finished

RHS 120×80/5

RHS 120×80/5 is a hot-finished rectangular hollow section per EN 10210: height 120 mm, width 80 mm, wall thickness 5 mm, weight 14.7 kg/m, cross-section area 18.7 cm², moment of inertia Iy = 365.4 cm⁴, elastic section modulus Wel,y = 60.9 cm³.

Cross section · mm

120Height h · mm

80Width b · mm

18.73Area A · cm²

14.70Mass G · kg/m

Geometry

Height h120.00 mm

Width b80.00 mm

Wall thickness t5.00 mm

Outer corner radius r_o7.50 mm

Inner corner radius r_i5.00 mm

Cross-section area A18.730 cm²

Weight G
steel 7850 kg/m³14.70kg/m

Section properties

I365.400 cm⁴192.900 cm⁴

W_el60.900 cm³48.240 cm³

W_pl74.590 cm³56.130 cm³

I_t401.300 cm⁴

Reference

Profile standardEN 10210

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of RHS 120×80/5 for your design forces

Find the lightest section Compare sections

Enter the design loads and the section is checked for bending, shear and compression with flexural buckling.

Bending/ 20.5 kN·m

Shear/ 178.4 kN

Compression/ 139.9 kN

Steelγ_M0γ_M1L_crmmkClass1

Resistances and factors

M_c,y,Rd / M_c,z,RdW_pl20.5 kN·m / 15.4 kN·m

V_c,z,Rd / V_c,y,RdA_v = 1124 mm²178.4 kN / 119.0 kN

N_pl,Rd / N_b,Rd515.1 kN / 139.9 kN

N_cr,y / N_cr,z302.9 kN / 159.9 kN

f_yEN 10210-1275 MPa

γ_M0 / γ_M11.00 / 1.00

Curve a · χ0.27

Yield strength is taken from the product standard for the governing thickness, so above 16 mm it is lower than the nominal grade. Simplified checks per EN 1993-1-1, without M+N+V interaction, without lateral-torsional buckling and without web shear buckling. Verify with a full design.