RHS · EN 10210 · hot finished

RHS 120×80/6.3

RHS 120×80/6.3 is a hot-finished rectangular hollow section per EN 10210: height 120 mm, width 80 mm, wall thickness 6.3 mm, weight 18.2 kg/m, cross-section area 23.2 cm², moment of inertia Iy = 439.8 cm⁴, elastic section modulus Wel,y = 73.3 cm³.

Cross section · mm

120Height h · mm

80Width b · mm

23.19Area A · cm²

18.20Mass G · kg/m

Geometry

Height h120.00 mm

Width b80.00 mm

Wall thickness t6.30 mm

Outer corner radius r_o9.45 mm

Inner corner radius r_i6.30 mm

Cross-section area A23.190 cm²

Weight G
steel 7850 kg/m³18.20kg/m

Section properties

I439.800 cm⁴230.500 cm⁴

W_el73.300 cm³57.620 cm³

W_pl90.980 cm³68.220 cm³

I_t486.600 cm⁴

Reference

Profile standardEN 10210

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of RHS 120×80/6.3 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/ 25.0 kN·m

Shear/ 220.9 kN

Compression/ 167.8 kN

Steelγ_M0γ_M1L_crmmkClass1

Resistances and factors

M_c,y,Rd / M_c,z,RdW_pl25.0 kN·m / 18.8 kN·m

V_c,z,Rd / V_c,y,RdA_v = 1391 mm²220.9 kN / 147.3 kN

N_pl,Rd / N_b,Rd637.7 kN / 167.8 kN

N_cr,y / N_cr,z364.6 kN / 191.1 kN

f_yEN 10210-1275 MPa

γ_M0 / γ_M11.00 / 1.00

Curve a · χ0.26

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.