RHS · EN 10219 · cold formed

RHS 100×40/3

RHS 100×40/3 is a cold-formed rectangular hollow section per EN 10219: height 100 mm, width 40 mm, wall thickness 3 mm, weight 6.1 kg/m, cross-section area 7.8 cm², moment of inertia Iy = 92.3 cm⁴, elastic section modulus Wel,y = 18.5 cm³.

Cross section · mm

100Height h · mm

40Width b · mm

7.81Area A · cm²

6.13Mass G · kg/m

Geometry

Height h100.00 mm

Width b40.00 mm

Wall thickness t3.00 mm

Outer corner radius r_o6.00 mm

Inner corner radius r_i3.00 mm

Cross-section area A7.810 cm²

Weight G
steel 7850 kg/m³6.13kg/m

Section properties

I92.340 cm⁴21.670 cm⁴

W_el18.470 cm³10.840 cm³

W_pl23.750 cm³12.380 cm³

I_t59.050 cm⁴

Reference

Profile standardEN 10219

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of RHS 100×40/3 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/ 6.5 kN·m

Shear/ 88.6 kN

Compression/ 15.7 kN

Steelγ_M0γ_M1L_crmmkClass1

Resistances and factors

M_c,y,Rd / M_c,z,RdW_pl6.5 kN·m / 3.4 kN·m

V_c,z,Rd / V_c,y,RdA_v = 558 mm²88.6 kN / 35.4 kN

N_pl,Rd / N_b,Rd214.8 kN / 15.7 kN

N_cr,y / N_cr,z76.6 kN / 18.0 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.