FL · EN 10058

FL 70×40

FL 70×40 is a hot rolled steel flat bar per EN 10058: width 70 mm, thickness 40 mm, weight 22 kg/m, cross-section area 28 cm², moment of inertia Iy = 114.3 cm⁴, elastic section modulus Wel,y = 32.7 cm³.

Cross section · mm

70Width b · mm

40Thickness t · mm

28.00Area A · cm²

21.98Mass G · kg/m

Geometry

Width b70.00 mm

Thickness t40.00 mm

Cross-section area A28.000 cm²

Weight G
steel 7850 kg/m³21.98kg/m

Section properties

I114.333 cm⁴37.333 cm⁴

W_el32.667 cm³18.667 cm³

W_pl49.000 cm³28.000 cm³

i20.20 mm11.55 mm

Reference

Profile standardEN 10058

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of FL 70×40 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/ 13.0 kN·m

Shear/ 428.4 kN

Compression/ 28.1 kN

Steelγ_M0γ_M1L_crmmkf_y265MPaClass1

Resistances and factors

M_c,y,Rd / M_c,z,RdW_pl13.0 kN·m / 7.4 kN·m

V_c,z,Rd / V_c,y,RdA_v = 2800 mm²428.4 kN / 428.4 kN

N_pl,Rd / N_b,Rd742.0 kN / 28.1 kN

N_cr,y / N_cr,z94.8 kN / 31.0 kN

f_yt = 40.0 mm > 16 mm, EN 10025-2265 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.