CHS · EN 10210 · hot finished

CHS 33.7/4

CHS 33.7/4 is a hot-finished circular hollow section per EN 10210: outer diameter 33.7 mm, wall thickness 4 mm, weight 2.9 kg/m, cross-section area 3.7 cm², moment of inertia Iy = 4.2 cm⁴, elastic section modulus Wel,y = 2.5 cm³.

Cross section · mm

33.7Outer diameter d · mm

4Wall thickness t · mm

3.73Area A · cm²

2.93Mass G · kg/m

Geometry

Outer diameter d33.70 mm

Wall thickness t4.00 mm

Cross-section area A3.730 cm²

Weight G
steel 7850 kg/m³2.93kg/m

Section properties

Moment of inertia I4.190 cm⁴

W_el2.487 cm³

W_pl3.550 cm³

Radius of gyration i10.60 mm

Torsion constant I_t8.380 cm⁴

Reference

Profile standardEN 10210

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of CHS 33.7/4 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/ 1.0 kN·m

Shear/ 37.7 kN

Compression/ 3.3 kN

Steelγ_M0γ_M1L_crmmkClass1

Resistances and factors

M_c,y,Rd / M_c,z,RdW_pl1.0 kN·m / 1.0 kN·m

V_c,z,Rd / V_c,y,RdA_v = 237 mm²37.7 kN / 37.7 kN

N_pl,Rd / N_b,Rd102.6 kN / 3.3 kN

N_cr,y / N_cr,z3.5 kN / 3.5 kN

f_yEN 10210-1275 MPa

γ_M0 / γ_M11.00 / 1.00

Curve a · χ0.03

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.