CHS · EN 10210 · hot finished

CHS 177.8/5

CHS 177.8/5 is a hot-finished circular hollow section per EN 10210: outer diameter 177.8 mm, wall thickness 5 mm, weight 21.3 kg/m, cross-section area 27.1 cm², moment of inertia Iy = 1014 cm⁴, elastic section modulus Wel,y = 114.1 cm³.

Cross section · mm

177.8Outer diameter d · mm

5Wall thickness t · mm

27.14Area A · cm²

21.30Mass G · kg/m

Geometry

Outer diameter d177.80 mm

Wall thickness t5.00 mm

Cross-section area A27.140 cm²

Weight G
steel 7850 kg/m³21.30kg/m

Section properties

Moment of inertia I1 014.000 cm⁴

W_el114.100 cm³

W_pl149.300 cm³

Radius of gyration i61.10 mm

Torsion constant I_t2 028.000 cm⁴

Reference

Profile standardEN 10210

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of CHS 177.8/5 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/ 41.1 kN·m

Shear/ 274.3 kN

Compression/ 526.6 kN

Steelγ_M0γ_M1L_crmmkClass1

Resistances and factors

M_c,y,Rd / M_c,z,RdW_pl41.1 kN·m / 41.1 kN·m

V_c,z,Rd / V_c,y,RdA_v = 1728 mm²274.3 kN / 274.3 kN

N_pl,Rd / N_b,Rd746.4 kN / 526.6 kN

N_cr,y / N_cr,z840.7 kN / 840.7 kN

f_yEN 10210-1275 MPa

γ_M0 / γ_M11.00 / 1.00

Curve a · χ0.71

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.