CHS · EN 10210 · hot finished

CHS 177.8/8

CHS 177.8/8 is a hot-finished circular hollow section per EN 10210: outer diameter 177.8 mm, wall thickness 8 mm, weight 33.5 kg/m, cross-section area 42.7 cm², moment of inertia Iy = 1541 cm⁴, elastic section modulus Wel,y = 173.4 cm³.

Cross section · mm

177.8Outer diameter d · mm

8Wall thickness t · mm

42.68Area A · cm²

33.50Mass G · kg/m

Geometry

Outer diameter d177.80 mm

Wall thickness t8.00 mm

Cross-section area A42.680 cm²

Weight G
steel 7850 kg/m³33.50kg/m

Section properties

Moment of inertia I1 541.000 cm⁴

W_el173.400 cm³

W_pl230.800 cm³

Radius of gyration i60.10 mm

Torsion constant I_t3 083.000 cm⁴

Reference

Profile standardEN 10210

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of CHS 177.8/8 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/ 63.5 kN·m

Shear/ 431.4 kN

Compression/ 815.1 kN

Steelγ_M0γ_M1L_crmmkClass1

Resistances and factors

M_c,y,Rd / M_c,z,RdW_pl63.5 kN·m / 63.5 kN·m

V_c,z,Rd / V_c,y,RdA_v = 2717 mm²431.4 kN / 431.4 kN

N_pl,Rd / N_b,Rd1.17 MN / 815.1 kN

N_cr,y / N_cr,z1.28 MN / 1.28 MN

f_yEN 10210-1275 MPa

γ_M0 / γ_M11.00 / 1.00

Curve a · χ0.69

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.