L · EN 10056-1

L 40×40/5

L 40×40/5 is an equal-leg steel angle per EN 10056-1: leg length 40 mm, thickness 5 mm, weight 3 kg/m, cross-section area 3.8 cm², moment of inertia Iy = 5.4 cm⁴, elastic section modulus Wel,y = 1.9 cm³.

Cross section · mm

40Leg a · mm

5Thickness t · mm

3.79Area A · cm²

3.00Mass G · kg/m

Geometry

Leg length a40.00 mm

Thickness t5.00 mm

Cross-section area A3.790 cm²

Centroid C_x=C_y11.6 mm

Weight G
steel 7850 kg/m³3.00kg/m

Section properties

Moment of inertia I_y=I_z5.430 cm⁴

Section modulus W_el1.912 cm³

Plastic modulus W_pl3.500 cm³

Radius of gyration i_y12.00 mm

Principal axes u–v

I_u8.610 cm⁴

I_v2.250 cm⁴

Reference

Profile standardEN 10056-1

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of L 40×40/5 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/ 0.5 kN·m

Shear/ 30.1 kN

Compression/ 1.8 kN

Steelγ_M0γ_M1L_crmmkClass3

Resistances and factors

M_c,y,Rd / M_c,z,RdW_el0.5 kN·m / 0.5 kN·m

V_c,z,Rd / V_c,y,RdA_v = 190 mm²30.1 kN / 30.1 kN

N_pl,Rd / N_b,Rd104.2 kN / 1.8 kN

N_cr,y / N_cr,v4.5 kN / 1.9 kN

f_yEN 10025-2275 MPa

γ_M0 / γ_M11.00 / 1.00

Curve b · 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.

For angles the bending values refer to the axes parallel to the legs, which are not principal axes. A moment about one of them also bends the section about the other, so bending has to be resolved into the principal axes u and v and checked biaxially. Buckling already uses the weaker principal axis v.