RHS · EN 10219 · cold formed

RHS 120×80/4

RHS 120×80/4 is a cold-formed rectangular hollow section per EN 10219: height 120 mm, width 80 mm, wall thickness 4 mm, weight 11.7 kg/m, cross-section area 15 cm², moment of inertia Iy = 294.6 cm⁴, elastic section modulus Wel,y = 49.1 cm³.

Cross section · mm

120Height h · mm

80Width b · mm

14.95Area A · cm²

11.70Mass G · kg/m

Geometry

Height h120.00 mm

Width b80.00 mm

Wall thickness t4.00 mm

Outer corner radius r_o8.00 mm

Inner corner radius r_i4.00 mm

Cross-section area A14.950 cm²

Weight G
steel 7850 kg/m³11.70kg/m

Section properties

I294.600 cm⁴157.300 cm⁴

W_el49.100 cm³39.320 cm³

W_pl59.770 cm³45.230 cm³

I_t331.200 cm⁴

Reference

Profile standardEN 10219

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of RHS 120×80/4 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/ 16.4 kN·m

Shear/ 142.4 kN

Compression/ 98.6 kN

Steelγ_M0γ_M1L_crmmkClass1

Resistances and factors

M_c,y,Rd / M_c,z,RdW_pl16.4 kN·m / 12.4 kN·m

V_c,z,Rd / V_c,y,RdA_v = 897 mm²142.4 kN / 94.9 kN

N_pl,Rd / N_b,Rd411.1 kN / 98.6 kN

N_cr,y / N_cr,z244.2 kN / 130.4 kN

f_yEN 10219-1275 MPa

γ_M0 / γ_M11.00 / 1.00

Curve c · χ0.24

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.