FL · EN 10058

FL 40×8

FL 40×8 is a hot rolled steel flat bar per EN 10058: width 40 mm, thickness 8 mm, weight 2.5 kg/m, cross-section area 3.2 cm², moment of inertia Iy = 4.3 cm⁴, elastic section modulus Wel,y = 2.1 cm³.

Cross section · mm

40Width b · mm

8Thickness t · mm

3.20Area A · cm²

2.51Mass G · kg/m

Geometry

Width b40.00 mm

Thickness t8.00 mm

Cross-section area A3.200 cm²

Weight G
steel 7850 kg/m³2.51kg/m

Section properties

I4.267 cm⁴0.171 cm⁴

W_el2.133 cm³0.427 cm³

W_pl3.200 cm³0.640 cm³

i11.50 mm2.31 mm

Reference

Profile standardEN 10058

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of FL 40×8 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/ 0.9 kN·m

Shear/ 50.8 kN

Compression/ 0.1 kN

Steelγ_M0γ_M1L_crmmkClass1

Resistances and factors

M_c,y,Rd / M_c,z,RdW_pl0.9 kN·m / 0.2 kN·m

V_c,z,Rd / V_c,y,RdA_v = 320 mm²50.8 kN / 50.8 kN

N_pl,Rd / N_b,Rd88.0 kN / 0.1 kN

N_cr,y / N_cr,z3.5 kN / 0.1 kN

f_yEN 10025-2275 MPa

γ_M0 / γ_M11.00 / 1.00

Curve c · χ0.00

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.