FL · EN 10058

FL 30×15

FL 30×15 is a hot rolled steel flat bar per EN 10058: width 30 mm, thickness 15 mm, weight 3.5 kg/m, cross-section area 4.5 cm², moment of inertia Iy = 3.4 cm⁴, elastic section modulus Wel,y = 2.3 cm³.

Cross section · mm

30Width b · mm

15Thickness t · mm

4.50Area A · cm²

3.53Mass G · kg/m

Geometry

Width b30.00 mm

Thickness t15.00 mm

Cross-section area A4.500 cm²

Weight G
steel 7850 kg/m³3.53kg/m

Section properties

I3.375 cm⁴0.844 cm⁴

W_el2.250 cm³1.125 cm³

W_pl3.375 cm³1.688 cm³

i8.70 mm4.33 mm

Reference

Profile standardEN 10058

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of FL 30×15 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/ 71.4 kN

Compression/ 0.7 kN

Steelγ_M0γ_M1L_crmmkClass1

Resistances and factors

M_c,y,Rd / M_c,z,RdW_pl0.9 kN·m / 0.5 kN·m

V_c,z,Rd / V_c,y,RdA_v = 450 mm²71.4 kN / 71.4 kN

N_pl,Rd / N_b,Rd123.8 kN / 0.7 kN

N_cr,y / N_cr,z2.8 kN / 0.7 kN

f_yEN 10025-2275 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.