FL · EN 10058

FL 70×25

FL 70×25 is a hot rolled steel flat bar per EN 10058: width 70 mm, thickness 25 mm, weight 13.7 kg/m, cross-section area 17.5 cm², moment of inertia Iy = 71.5 cm⁴, elastic section modulus Wel,y = 20.4 cm³.

Cross section · mm

70Width b · mm

25Thickness t · mm

17.50Area A · cm²

13.74Mass G · kg/m

Geometry

Width b70.00 mm

Thickness t25.00 mm

Cross-section area A17.500 cm²

Weight G
steel 7850 kg/m³13.74kg/m

Section properties

I71.458 cm⁴9.115 cm⁴

W_el20.417 cm³7.292 cm³

W_pl30.625 cm³10.938 cm³

i20.20 mm7.22 mm

Reference

Profile standardEN 10058

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of FL 70×25 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/ 8.1 kN·m

Shear/ 267.7 kN

Compression/ 7.1 kN

Steelγ_M0γ_M1L_crmmkf_y265MPaClass1

Resistances and factors

M_c,y,Rd / M_c,z,RdW_pl8.1 kN·m / 2.9 kN·m

V_c,z,Rd / V_c,y,RdA_v = 1750 mm²267.7 kN / 267.7 kN

N_pl,Rd / N_b,Rd463.8 kN / 7.1 kN

N_cr,y / N_cr,z59.2 kN / 7.6 kN

f_yt = 25.0 mm > 16 mm, EN 10025-2265 MPa

γ_M0 / γ_M11.00 / 1.00

Curve c · χ0.02

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.