FL · EN 10058

FL 80×20

FL 80×20 is a hot rolled steel flat bar per EN 10058: width 80 mm, thickness 20 mm, weight 12.6 kg/m, cross-section area 16 cm², moment of inertia Iy = 85.3 cm⁴, elastic section modulus Wel,y = 21.3 cm³.

Cross section · mm

80Width b · mm

20Thickness t · mm

16.00Area A · cm²

12.56Mass G · kg/m

Geometry

Width b80.00 mm

Thickness t20.00 mm

Cross-section area A16.000 cm²

Weight G
steel 7850 kg/m³12.56kg/m

Section properties

I85.333 cm⁴5.333 cm⁴

W_el21.333 cm³5.333 cm³

W_pl32.000 cm³8.000 cm³

i23.10 mm5.77 mm

Reference

Profile standardEN 10058

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of FL 80×20 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/ 8.5 kN·m

Shear/ 244.8 kN

Compression/ 4.2 kN

Steelγ_M0γ_M1L_crmmkf_y265MPaClass1

Resistances and factors

M_c,y,Rd / M_c,z,RdW_pl8.5 kN·m / 2.1 kN·m

V_c,z,Rd / V_c,y,RdA_v = 1600 mm²244.8 kN / 244.8 kN

N_pl,Rd / N_b,Rd424.0 kN / 4.2 kN

N_cr,y / N_cr,z70.7 kN / 4.4 kN

f_yt = 20.0 mm > 16 mm, EN 10025-2265 MPa

γ_M0 / γ_M11.00 / 1.00

Curve c · χ0.01

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.