RHS · EN 10219 · cold formed

RHS 120×80/8

RHS 120×80/8 is a cold-formed rectangular hollow section per EN 10219: height 120 mm, width 80 mm, wall thickness 8 mm, weight 21.4 kg/m, cross-section area 27.2 cm², moment of inertia Iy = 475.8 cm⁴, elastic section modulus Wel,y = 79.3 cm³.

Cross section · mm

120Height h · mm

80Width b · mm

27.24Area A · cm²

21.40Mass G · kg/m

Geometry

Height h120.00 mm

Width b80.00 mm

Wall thickness t8.00 mm

Outer corner radius r_o20.00 mm

Inner corner radius r_i12.00 mm

Cross-section area A27.240 cm²

Weight G
steel 7850 kg/m³21.40kg/m

Section properties

I475.800 cm⁴251.700 cm⁴

W_el79.310 cm³62.920 cm³

W_pl102.000 cm³76.930 cm³

I_t584.000 cm⁴

Reference

Profile standardEN 10219

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of RHS 120×80/8 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/ 28.1 kN·m

Shear/ 259.5 kN

Compression/ 161.2 kN

Steelγ_M0γ_M1L_crmmkClass1

Resistances and factors

M_c,y,Rd / M_c,z,RdW_pl28.1 kN·m / 21.2 kN·m

V_c,z,Rd / V_c,y,RdA_v = 1634 mm²259.5 kN / 173.0 kN

N_pl,Rd / N_b,Rd749.1 kN / 161.2 kN

N_cr,y / N_cr,z394.5 kN / 208.7 kN

f_yEN 10219-1275 MPa

γ_M0 / γ_M11.00 / 1.00

Curve c · χ0.22

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.