CHS · EN 10219 · cold formed

CHS 88.9/6.3

CHS 88.9/6.3 is a cold-formed circular hollow section per EN 10219: outer diameter 88.9 mm, wall thickness 6.3 mm, weight 12.8 kg/m, cross-section area 16.4 cm², moment of inertia Iy = 140.2 cm⁴, elastic section modulus Wel,y = 31.6 cm³.

Cross section · mm

88.9Outer diameter d · mm

6.3Wall thickness t · mm

16.35Area A · cm²

12.80Mass G · kg/m

Geometry

Outer diameter d88.90 mm

Wall thickness t6.30 mm

Cross-section area A16.350 cm²

Weight G
steel 7850 kg/m³12.80kg/m

Section properties

Moment of inertia I140.200 cm⁴

W_el31.550 cm³

W_pl43.070 cm³

Radius of gyration i29.30 mm

Torsion constant I_t280.500 cm⁴

Reference

Profile standardEN 10219

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of CHS 88.9/6.3 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/ 11.8 kN·m

Shear/ 165.3 kN

Compression/ 90.8 kN

Steelγ_M0γ_M1L_crmmkClass1

Resistances and factors

M_c,y,Rd / M_c,z,RdW_pl11.8 kN·m / 11.8 kN·m

V_c,z,Rd / V_c,y,RdA_v = 1041 mm²165.3 kN / 165.3 kN

N_pl,Rd / N_b,Rd449.6 kN / 90.8 kN

N_cr,y / N_cr,z116.2 kN / 116.2 kN

f_yEN 10219-1275 MPa

γ_M0 / γ_M11.00 / 1.00

Curve c · χ0.20

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.