RHS · EN 10219 · cold formed

RHS 120×80/5

RHS 120×80/5 is a cold-formed rectangular hollow section per EN 10219: height 120 mm, width 80 mm, wall thickness 5 mm, weight 14.4 kg/m, cross-section area 18.4 cm², moment of inertia Iy = 353.1 cm⁴, elastic section modulus Wel,y = 58.9 cm³.

Cross section · mm

120Height h · mm

80Width b · mm

18.36Area A · cm²

14.40Mass G · kg/m

Geometry

Height h120.00 mm

Width b80.00 mm

Wall thickness t5.00 mm

Outer corner radius r_o10.00 mm

Inner corner radius r_i5.00 mm

Cross-section area A18.360 cm²

Weight G
steel 7850 kg/m³14.40kg/m

Section properties

I353.100 cm⁴187.800 cm⁴

W_el58.860 cm³46.940 cm³

W_pl72.450 cm³54.740 cm³

I_t402.300 cm⁴

Reference

Profile standardEN 10219

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/ 19.9 kN·m

Shear/ 174.9 kN

Compression/ 118.3 kN

Steelγ_M0γ_M1L_crmmkClass1

Resistances and factors

M_c,y,Rd / M_c,z,RdW_pl19.9 kN·m / 15.1 kN·m

V_c,z,Rd / V_c,y,RdA_v = 1102 mm²174.9 kN / 116.6 kN

N_pl,Rd / N_b,Rd504.9 kN / 118.3 kN

N_cr,y / N_cr,z292.7 kN / 155.7 kN

f_yEN 10219-1275 MPa

γ_M0 / γ_M11.00 / 1.00

Curve c · χ0.23

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.