RHS · EN 10219 · cold formed

RHS 100×40/4

RHS 100×40/4 is a cold-formed rectangular hollow section per EN 10219: height 100 mm, width 40 mm, wall thickness 4 mm, weight 8 kg/m, cross-section area 10.2 cm², moment of inertia Iy = 115.7 cm⁴, elastic section modulus Wel,y = 23.1 cm³.

Cross section · mm

100Height h · mm

40Width b · mm

10.15Area A · cm²

7.97Mass G · kg/m

Geometry

Height h100.00 mm

Width b40.00 mm

Wall thickness t4.00 mm

Outer corner radius r_o8.00 mm

Inner corner radius r_i4.00 mm

Cross-section area A10.150 cm²

Weight G
steel 7850 kg/m³7.97kg/m

Section properties

I115.700 cm⁴26.690 cm⁴

W_el23.140 cm³13.350 cm³

W_pl30.260 cm³15.650 cm³

I_t74.530 cm⁴

Reference

Profile standardEN 10219

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of RHS 100×40/4 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/ 8.3 kN·m

Shear/ 115.1 kN

Compression/ 19.4 kN

Steelγ_M0γ_M1L_crmmkClass1

Resistances and factors

M_c,y,Rd / M_c,z,RdW_pl8.3 kN·m / 4.3 kN·m

V_c,z,Rd / V_c,y,RdA_v = 725 mm²115.1 kN / 46.0 kN

N_pl,Rd / N_b,Rd279.1 kN / 19.4 kN

N_cr,y / N_cr,z95.9 kN / 22.1 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.