CHS · EN 10210 · hot finished

CHS 139.7/4

CHS 139.7/4 is a hot-finished circular hollow section per EN 10210: outer diameter 139.7 mm, wall thickness 4 mm, weight 13.4 kg/m, cross-section area 17.1 cm², moment of inertia Iy = 392.9 cm⁴, elastic section modulus Wel,y = 56.2 cm³.

Cross section · mm

139.7Outer diameter d · mm

4Wall thickness t · mm

17.05Area A · cm²

13.40Mass G · kg/m

Geometry

Outer diameter d139.70 mm

Wall thickness t4.00 mm

Cross-section area A17.050 cm²

Weight G
steel 7850 kg/m³13.40kg/m

Section properties

Moment of inertia I392.900 cm⁴

W_el56.240 cm³

W_pl73.680 cm³

Radius of gyration i48.00 mm

Torsion constant I_t785.700 cm⁴

Reference

Profile standardEN 10210

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of CHS 139.7/4 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/ 20.3 kN·m

Shear/ 172.3 kN

Compression/ 248.6 kN

Steelγ_M0γ_M1L_crmmkClass1

Resistances and factors

M_c,y,Rd / M_c,z,RdW_pl20.3 kN·m / 20.3 kN·m

V_c,z,Rd / V_c,y,RdA_v = 1085 mm²172.3 kN / 172.3 kN

N_pl,Rd / N_b,Rd468.9 kN / 248.6 kN

N_cr,y / N_cr,z325.7 kN / 325.7 kN

f_yEN 10210-1275 MPa

γ_M0 / γ_M11.00 / 1.00

Curve a · χ0.53

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.