RHS · EN 10210 · hot finished

RHS 120×80/4

RHS 120×80/4 is a hot-finished rectangular hollow section per EN 10210: height 120 mm, width 80 mm, wall thickness 4 mm, weight 11.9 kg/m, cross-section area 15.2 cm², moment of inertia Iy = 302.6 cm⁴, elastic section modulus Wel,y = 50.4 cm³.

Cross section · mm

120Height h · mm

80Width b · mm

15.19Area A · cm²

11.90Mass G · kg/m

Geometry

Height h120.00 mm

Width b80.00 mm

Wall thickness t4.00 mm

Outer corner radius r_o6.00 mm

Inner corner radius r_i4.00 mm

Cross-section area A15.190 cm²

Weight G
steel 7850 kg/m³11.90kg/m

Section properties

I302.600 cm⁴160.700 cm⁴

W_el50.430 cm³40.180 cm³

W_pl61.150 cm³46.140 cm³

I_t330.400 cm⁴

Reference

Profile standardEN 10210

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of RHS 120×80/4 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/ 16.8 kN·m

Shear/ 144.7 kN

Compression/ 116.3 kN

Steelγ_M0γ_M1L_crmmkClass1

Resistances and factors

M_c,y,Rd / M_c,z,RdW_pl16.8 kN·m / 12.7 kN·m

V_c,z,Rd / V_c,y,RdA_v = 911 mm²144.7 kN / 96.5 kN

N_pl,Rd / N_b,Rd417.7 kN / 116.3 kN

N_cr,y / N_cr,z250.9 kN / 133.2 kN

f_yEN 10210-1275 MPa

γ_M0 / γ_M11.00 / 1.00

Curve a · χ0.28

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.