LU · EN 10056-1

L 50×30/5

L 50×30/5 is an unequal-leg steel angle per EN 10056-1: legs 50×30 mm, thickness 5 mm, weight 3 kg/m, cross-section area 3.8 cm², moment of inertia Iy = 9.4 cm⁴, elastic section modulus Wel,y = 2.9 cm³.

Cross section · mm

50Long leg a · mm

30Short leg b · mm

3.78Area A · cm²

2.96Mass G · kg/m

Geometry

Long leg a50.00 mm

Short leg b30.00 mm

Thickness t5.00 mm

Root radius r₁5.00 mm

Cross-section area A3.780 cm²

Centroid C_x17.3 mm

Centroid C_y7.4 mm

Weight G
steel 7850 kg/m³2.96kg/m

Section properties

I_y9.360 cm⁴

I_z2.510 cm⁴

W_el,y2.860 cm³

W_el,z1.110 cm³

i_y15.70 mm

i_z8.20 mm

Principal axes u–v

I_u10.300 cm⁴

I_v1.540 cm⁴

i_v6.40 mm

tan α0.352 –

Reference

Profile standardEN 10056-1

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of L 50×30/5 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/ 0.8 kN·m

Shear/ 30.0 kN

Compression/ 1.2 kN

Steelγ_M0γ_M1L_crmmkClass3

Resistances and factors

M_c,y,Rd / M_c,z,RdW_el0.8 kN·m / 0.3 kN·m

V_c,z,Rd / V_c,y,RdA_v = 189 mm²30.0 kN / 30.0 kN

N_pl,Rd / N_b,Rd104.0 kN / 1.2 kN

N_cr,y / N_cr,v7.8 kN / 1.3 kN

f_yEN 10025-2275 MPa

γ_M0 / γ_M11.00 / 1.00

Curve b · 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.

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.