FL · EN 10058

FL 45×12

FL 45×12 is a hot rolled steel flat bar per EN 10058: width 45 mm, thickness 12 mm, weight 4.2 kg/m, cross-section area 5.4 cm², moment of inertia Iy = 9.1 cm⁴, elastic section modulus Wel,y = 4.1 cm³.

Cross section · mm

45Width b · mm

12Thickness t · mm

5.40Area A · cm²

4.24Mass G · kg/m

Geometry

Width b45.00 mm

Thickness t12.00 mm

Cross-section area A5.400 cm²

Weight G
steel 7850 kg/m³4.24kg/m

Section properties

I9.113 cm⁴0.648 cm⁴

W_el4.050 cm³1.080 cm³

W_pl6.075 cm³1.620 cm³

i13.00 mm3.46 mm

Reference

Profile standardEN 10058

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of FL 45×12 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/ 1.7 kN·m

Shear/ 85.7 kN

Compression/ 0.5 kN

Steelγ_M0γ_M1L_crmmkClass1

Resistances and factors

M_c,y,Rd / M_c,z,RdW_pl1.7 kN·m / 0.4 kN·m

V_c,z,Rd / V_c,y,RdA_v = 540 mm²85.7 kN / 85.7 kN

N_pl,Rd / N_b,Rd148.5 kN / 0.5 kN

N_cr,y / N_cr,z7.6 kN / 0.5 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.