RHS · EN 10219 · cold formed

RHS 120×80/6.3

RHS 120×80/6.3 is a cold-formed rectangular hollow section per EN 10219: height 120 mm, width 80 mm, wall thickness 6.3 mm, weight 17.5 kg/m, cross-section area 22.3 cm², moment of inertia Iy = 408.5 cm⁴, elastic section modulus Wel,y = 68.1 cm³.

Cross section · mm
yz801206.3[mm]
120Height h · mm
80Width b · mm
22.25Area A · cm²
17.50Mass G · kg/m
Geometry
Height h120.00 mm
Width b80.00 mm
Wall thickness t6.30 mm
Outer corner radius ro15.75 mm
Inner corner radius ri9.45 mm
Cross-section area A22.250 cm²
Weight G
steel 7850 kg/m³17.50kg/m
Section properties
I408.500 cm⁴217.100 cm⁴
Wel68.080 cm³54.280 cm³
Wpl85.570 cm³64.680 cm³
It487.800 cm⁴
Reference
Profile standardEN 10219
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 sectionCompare sections

Enter the design loads and the section is checked for bending, shear and compression with flexural buckling.

Bending/ 23.5 kN·m
Shear/ 212.0 kN
Compression/ 137.8 kN
Class1
Resistances and factors
Mc,y,Rd / Mc,z,RdW_pl23.5 kN·m / 17.8 kN·m
Vc,z,Rd / Vc,y,RdA_v = 1335 mm²212.0 kN / 141.3 kN
Npl,Rd / Nb,Rd611.9 kN / 137.8 kN
Ncr,y / Ncr,z338.7 kN / 180.0 kN
fyEN 10219-1275 MPa
γM0 / γM11.00 / 1.00
Curve c · χ0.23

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.