FL · EN 10058

FL 80×50

FL 80×50 is a hot rolled steel flat bar per EN 10058: width 80 mm, thickness 50 mm, weight 31.4 kg/m, cross-section area 40 cm², moment of inertia Iy = 213.3 cm⁴, elastic section modulus Wel,y = 53.3 cm³.

Cross section · mm

80Width b · mm

50Thickness t · mm

40.00Area A · cm²

31.40Mass G · kg/m

Geometry

Width b80.00 mm

Thickness t50.00 mm

Cross-section area A40.000 cm²

Weight G
steel 7850 kg/m³31.40kg/m

Section properties

I213.333 cm⁴83.333 cm⁴

W_el53.333 cm³33.333 cm³

W_pl80.000 cm³50.000 cm³

i23.10 mm14.43 mm

Reference

Profile standardEN 10058

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of FL 80×50 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/ 20.4 kN·m

Shear/ 588.9 kN

Compression/ 61.2 kN

Steelγ_M0γ_M1L_crmmkf_y255MPaClass1

Resistances and factors

M_c,y,Rd / M_c,z,RdW_pl20.4 kN·m / 12.8 kN·m

V_c,z,Rd / V_c,y,RdA_v = 4000 mm²588.9 kN / 588.9 kN

N_pl,Rd / N_b,Rd1.02 MN / 61.2 kN

N_cr,y / N_cr,z176.9 kN / 69.1 kN

f_yt = 50.0 mm > 16 mm, EN 10025-2255 MPa

γ_M0 / γ_M11.00 / 1.00

Curve c · χ0.06

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.