UPN · EN 10365

UPN 80

UPN 80 is a European U-channel with tapered flanges per EN 10365: height 80 mm, flange width 45 mm, weight 8.6 kg/m, cross-section area 11 cm², moment of inertia Iy = 106 cm⁴, elastic section modulus Wel,y = 26.5 cm³.

Cross section · mm

80Height h · mm

45Flange width b · mm

11.00Area A · cm²

8.60Mass G · kg/m

Geometry

Height80.00 mm

Flange width45.00 mm

Flange thickness t_f8.00 mm

Web thickness t_w6.00 mm

Root radius r₁8.00 mm

Toe radius r₂4.00 mm

Centroid position e_y14.50 mm

Cross-section area A11.000 cm²

Weight G
steel 7850 kg/m³8.60kg/m

Section properties

I106.000 cm⁴19.400 cm⁴

W_el26.500 cm³6.360 cm³

W_pl32.300 cm³11.900 cm³

i31.00 mm13.30 mm

max S15.920 cm³3.170 cm³

Torsion & LT buckling

Torsion constant I_t2.200 cm⁴

Warping constant I_ω180.0 cm⁶

Reference

Profile standardEN 10365

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of UPN 80 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/ 8.9 kN·m

Shear/ 78.1 kN

Compression/ 14.4 kN

Steelγ_M0γ_M1L_crmmkClass1

Resistances and factors

M_c,y,Rd / M_c,z,RdW_pl8.9 kN·m / 3.3 kN·m

V_c,z,Rd / V_c,y,RdA_v = 492 mm²78.1 kN / 114.3 kN

N_pl,Rd / N_b,Rd302.5 kN / 14.4 kN

N_cr,y / N_cr,z87.9 kN / 16.1 kN

f_yEN 10025-2275 MPa

γ_M0 / γ_M11.00 / 1.00

Curve c · χ0.05

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.