RHS · EN 10219 · cold formed

RHS 80×40/2

RHS 80×40/2 is a cold-formed rectangular hollow section per EN 10219: height 80 mm, width 40 mm, wall thickness 2 mm, weight 3.6 kg/m, cross-section area 4.5 cm², moment of inertia Iy = 37.4 cm⁴, elastic section modulus Wel,y = 9.3 cm³.

Cross section · mm

80Height h · mm

40Width b · mm

4.54Area A · cm²

3.56Mass G · kg/m

Geometry

Height h80.00 mm

Width b40.00 mm

Wall thickness t2.00 mm

Outer corner radius r_o4.00 mm

Inner corner radius r_i2.00 mm

Cross-section area A4.540 cm²

Weight G
steel 7850 kg/m³3.56kg/m

Section properties

I37.360 cm⁴12.720 cm⁴

W_el9.339 cm³6.361 cm³

W_pl11.610 cm³7.174 cm³

I_t30.880 cm⁴

Reference

Profile standardEN 10219

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of RHS 80×40/2 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/ 3.2 kN·m

Shear/ 48.1 kN

Compression/ 9.2 kN

Steelγ_M0γ_M1L_crmmkClass1 / 3bending / compression

Resistances and factors

M_c,y,Rd / M_c,z,RdW_pl3.2 kN·m / 2.0 kN·m

V_c,z,Rd / V_c,y,RdA_v = 303 mm²48.1 kN / 24.0 kN

N_pl,Rd / N_b,Rd124.8 kN / 9.2 kN

N_cr,y / N_cr,z31.0 kN / 10.5 kN

f_yEN 10219-1275 MPa

γ_M0 / γ_M11.00 / 1.00

Curve c · χ0.07

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.