RHS · EN 10219 · cold formed

RHS 120×80/3

RHS 120×80/3 is a cold-formed rectangular hollow section per EN 10219: height 120 mm, width 80 mm, wall thickness 3 mm, weight 9 kg/m, cross-section area 11.4 cm², moment of inertia Iy = 230.2 cm⁴, elastic section modulus Wel,y = 38.4 cm³.

Cross section · mm

120Height h · mm

80Width b · mm

11.41Area A · cm²

8.96Mass G · kg/m

Geometry

Height h120.00 mm

Width b80.00 mm

Wall thickness t3.00 mm

Outer corner radius r_o6.00 mm

Inner corner radius r_i3.00 mm

Cross-section area A11.410 cm²

Weight G
steel 7850 kg/m³8.96kg/m

Section properties

I230.200 cm⁴123.400 cm⁴

W_el38.370 cm³30.860 cm³

W_pl46.200 cm³35.020 cm³

I_t255.500 cm⁴

Reference

Profile standardEN 10219

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of RHS 120×80/3 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/ 12.7 kN·m

Shear/ 108.7 kN

Compression/ 77.0 kN

Steelγ_M0γ_M1L_crmmkClass1 / 3bending / compression

Resistances and factors

M_c,y,Rd / M_c,z,RdW_pl12.7 kN·m / 9.6 kN·m

V_c,z,Rd / V_c,y,RdA_v = 685 mm²108.7 kN / 72.5 kN

N_pl,Rd / N_b,Rd313.8 kN / 77.0 kN

N_cr,y / N_cr,z190.8 kN / 102.3 kN

f_yEN 10219-1275 MPa

γ_M0 / γ_M11.00 / 1.00

Curve c · χ0.25

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.