CHS · EN 10210 · hot finished

CHS 323.9/20

CHS 323.9/20 is a hot-finished circular hollow section per EN 10210: outer diameter 323.9 mm, wall thickness 20 mm, weight 149.9 kg/m, cross-section area 191 cm², moment of inertia Iy = 22140 cm⁴, elastic section modulus Wel,y = 1367 cm³.

Cross section · mm

323.9Outer diameter d · mm

20Wall thickness t · mm

190.95Area A · cm²

149.90Mass G · kg/m

Geometry

Outer diameter d323.90 mm

Wall thickness t20.00 mm

Cross-section area A190.950 cm²

Weight G
steel 7850 kg/m³149.90kg/m

Section properties

Moment of inertia I22 140.000 cm⁴

W_el1 367.000 cm³

W_pl1 850.000 cm³

Radius of gyration i107.70 mm

Torsion constant I_t44 280.000 cm⁴

Reference

Profile standardEN 10210

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of CHS 323.9/20 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/ 490.3 kN·m

Shear/ 1.86 MN

Compression/ 4.64 MN

Steelγ_M0γ_M1L_crmmkf_y265MPaClass1

Resistances and factors

M_c,y,Rd / M_c,z,RdW_pl490.3 kN·m / 490.3 kN·m

V_c,z,Rd / V_c,y,RdA_v = 12156 mm²1.86 MN / 1.86 MN

N_pl,Rd / N_b,Rd5.06 MN / 4.64 MN

N_cr,y / N_cr,z18.36 MN / 18.36 MN

f_yt = 20.0 mm > 16 mm, EN 10210-1265 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.