CHS · EN 10219 · cold formed

CHS 88.9/3

CHS 88.9/3 is a cold-formed circular hollow section per EN 10219: outer diameter 88.9 mm, wall thickness 3 mm, weight 6.4 kg/m, cross-section area 8.1 cm², moment of inertia Iy = 74.8 cm⁴, elastic section modulus Wel,y = 16.8 cm³.

Cross section · mm

88.9Outer diameter d · mm

3Wall thickness t · mm

8.10Area A · cm²

6.36Mass G · kg/m

Geometry

Outer diameter d88.90 mm

Wall thickness t3.00 mm

Cross-section area A8.100 cm²

Weight G
steel 7850 kg/m³6.36kg/m

Section properties

Moment of inertia I74.760 cm⁴

W_el16.820 cm³

W_pl22.150 cm³

Radius of gyration i30.40 mm

Torsion constant I_t149.500 cm⁴

Reference

Profile standardEN 10219

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of CHS 88.9/3 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/ 6.1 kN·m

Shear/ 81.9 kN

Compression/ 47.9 kN

Steelγ_M0γ_M1L_crmmkClass1

Resistances and factors

M_c,y,Rd / M_c,z,RdW_pl6.1 kN·m / 6.1 kN·m

V_c,z,Rd / V_c,y,RdA_v = 516 mm²81.9 kN / 81.9 kN

N_pl,Rd / N_b,Rd222.8 kN / 47.9 kN

N_cr,y / N_cr,z62.0 kN / 62.0 kN

f_yEN 10219-1275 MPa

γ_M0 / γ_M11.00 / 1.00

Curve c · χ0.21

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.