RHS · EN 10219 · cold formed

RHS 70×50/2.5

RHS 70×50/2.5 is a cold-formed rectangular hollow section per EN 10219: height 70 mm, width 50 mm, wall thickness 2.5 mm, weight 4.4 kg/m, cross-section area 5.6 cm², moment of inertia Iy = 38 cm⁴, elastic section modulus Wel,y = 10.9 cm³.

Cross section · mm

70Height h · mm

50Width b · mm

5.59Area A · cm²

4.39Mass G · kg/m

Geometry

Height h70.00 mm

Width b50.00 mm

Wall thickness t2.50 mm

Outer corner radius r_o5.00 mm

Inner corner radius r_i2.50 mm

Cross-section area A5.590 cm²

Weight G
steel 7850 kg/m³4.39kg/m

Section properties

I38.010 cm⁴22.590 cm⁴

W_el10.860 cm³9.036 cm³

W_pl13.160 cm³10.450 cm³

I_t45.750 cm⁴

Reference

Profile standardEN 10219

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of RHS 70×50/2.5 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/ 3.6 kN·m

Shear/ 51.8 kN

Compression/ 15.9 kN

Steelγ_M0γ_M1L_crmmkClass1

Resistances and factors

M_c,y,Rd / M_c,z,RdW_pl3.6 kN·m / 2.9 kN·m

V_c,z,Rd / V_c,y,RdA_v = 326 mm²51.8 kN / 37.0 kN

N_pl,Rd / N_b,Rd153.7 kN / 15.9 kN

N_cr,y / N_cr,z31.5 kN / 18.7 kN

f_yEN 10219-1275 MPa

γ_M0 / γ_M11.00 / 1.00

Curve c · χ0.10

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.