FL · EN 10058

FL 45×20

FL 45×20 is a hot rolled steel flat bar per EN 10058: width 45 mm, thickness 20 mm, weight 7.1 kg/m, cross-section area 9 cm², moment of inertia Iy = 15.2 cm⁴, elastic section modulus Wel,y = 6.8 cm³.

Cross section · mm

45Width b · mm

20Thickness t · mm

9.00Area A · cm²

7.06Mass G · kg/m

Geometry

Width b45.00 mm

Thickness t20.00 mm

Cross-section area A9.000 cm²

Weight G
steel 7850 kg/m³7.06kg/m

Section properties

I15.188 cm⁴3.000 cm⁴

W_el6.750 cm³3.000 cm³

W_pl10.125 cm³4.500 cm³

i13.00 mm5.77 mm

Reference

Profile standardEN 10058

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of FL 45×20 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/ 2.7 kN·m

Shear/ 137.7 kN

Compression/ 2.4 kN

Steelγ_M0γ_M1L_crmmkf_y265MPaClass1

Resistances and factors

M_c,y,Rd / M_c,z,RdW_pl2.7 kN·m / 1.2 kN·m

V_c,z,Rd / V_c,y,RdA_v = 900 mm²137.7 kN / 137.7 kN

N_pl,Rd / N_b,Rd238.5 kN / 2.4 kN

N_cr,y / N_cr,z12.6 kN / 2.5 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.