CHS · EN 10210 · hot finished

CHS 323.9/5

CHS 323.9/5 is a hot-finished circular hollow section per EN 10210: outer diameter 323.9 mm, wall thickness 5 mm, weight 39.3 kg/m, cross-section area 50.1 cm², moment of inertia Iy = 6369 cm⁴, elastic section modulus Wel,y = 393.3 cm³.

Cross section · mm

323.9Outer diameter d · mm

5Wall thickness t · mm

50.09Area A · cm²

39.30Mass G · kg/m

Geometry

Outer diameter d323.90 mm

Wall thickness t5.00 mm

Cross-section area A50.090 cm²

Weight G
steel 7850 kg/m³39.30kg/m

Section properties

Moment of inertia I6 369.000 cm⁴

W_el393.300 cm³

W_pl508.500 cm³

Radius of gyration i112.80 mm

Torsion constant I_t12 740.000 cm⁴

Reference

Profile standardEN 10210

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of CHS 323.9/5 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/ 108.2 kN·m

Shear/ 506.3 kN

Compression/ 1.27 MN

Steelγ_M0γ_M1L_crmmkClass3

Resistances and factors

M_c,y,Rd / M_c,z,RdW_el108.2 kN·m / 108.2 kN·m

V_c,z,Rd / V_c,y,RdA_v = 3189 mm²506.3 kN / 506.3 kN

N_pl,Rd / N_b,Rd1.38 MN / 1.27 MN

N_cr,y / N_cr,z5.28 MN / 5.28 MN

f_yEN 10210-1275 MPa

γ_M0 / γ_M11.00 / 1.00

Curve a · χ0.92

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.