UPN · EN 10365

UPN 65

UPN 65 is a European U-channel with tapered flanges per EN 10365: height 65 mm, flange width 42 mm, weight 7.1 kg/m, cross-section area 9 cm², moment of inertia Iy = 57.5 cm⁴, elastic section modulus Wel,y = 17.7 cm³.

Cross section · mm

65Height h · mm

42Flange width b · mm

9.03Area A · cm²

7.10Mass G · kg/m

Geometry

Height65.00 mm

Flange width42.00 mm

Flange thickness t_f7.50 mm

Web thickness t_w5.50 mm

Root radius r₁7.50 mm

Toe radius r₂4.00 mm

Centroid position e_y14.20 mm

Cross-section area A9.030 cm²

Weight G
steel 7850 kg/m³7.10kg/m

Section properties

I57.500 cm⁴14.100 cm⁴

W_el17.700 cm³5.070 cm³

W_pl21.700 cm³9.380 cm³

i25.20 mm12.50 mm

max S10.710 cm³2.440 cm³

Torsion & LT buckling

Torsion constant I_t1.610 cm⁴

Warping constant I_ω80.0 cm⁶

Reference

Profile standardEN 10365

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of UPN 65 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/ 6.0 kN·m

Shear/ 58.8 kN

Compression/ 10.6 kN

Steelγ_M0γ_M1L_crmmkClass1

Resistances and factors

M_c,y,Rd / M_c,z,RdW_pl6.0 kN·m / 2.6 kN·m

V_c,z,Rd / V_c,y,RdA_v = 371 mm²58.8 kN / 100.0 kN

N_pl,Rd / N_b,Rd248.3 kN / 10.6 kN

N_cr,y / N_cr,z47.7 kN / 11.7 kN

f_yEN 10025-2275 MPa

γ_M0 / γ_M11.00 / 1.00

Curve c · χ0.04

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.