CHS · EN 10219 · cold formed

CHS 273/12.5

CHS 273/12.5 is a cold-formed circular hollow section per EN 10219: outer diameter 273 mm, wall thickness 12.5 mm, weight 80.3 kg/m, cross-section area 102.3 cm², moment of inertia Iy = 8697 cm⁴, elastic section modulus Wel,y = 637.2 cm³.

Cross section · mm

273Outer diameter d · mm

12.5Wall thickness t · mm

102.30Area A · cm²

80.30Mass G · kg/m

Geometry

Outer diameter d273.00 mm

Wall thickness t12.50 mm

Cross-section area A102.300 cm²

Weight G
steel 7850 kg/m³80.30kg/m

Section properties

Moment of inertia I8 697.000 cm⁴

W_el637.200 cm³

W_pl848.900 cm³

Radius of gyration i92.20 mm

Torsion constant I_t17 390.000 cm⁴

Reference

Profile standardEN 10219

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of CHS 273/12.5 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/ 233.4 kN·m

Shear/ 1.03 MN

Compression/ 2.17 MN

Steelγ_M0γ_M1L_crmmkClass1

Resistances and factors

M_c,y,Rd / M_c,z,RdW_pl233.4 kN·m / 233.4 kN·m

V_c,z,Rd / V_c,y,RdA_v = 6513 mm²1.03 MN / 1.03 MN

N_pl,Rd / N_b,Rd2.81 MN / 2.17 MN

N_cr,y / N_cr,z7.21 MN / 7.21 MN

f_yEN 10219-1275 MPa

γ_M0 / γ_M11.00 / 1.00

Curve c · χ0.77

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.