LU · EN 10056-1

L 100×65/10

L 100×65/10 is an unequal-leg steel angle per EN 10056-1: legs 100×65 mm, thickness 10 mm, weight 12.3 kg/m, cross-section area 15.6 cm², moment of inertia Iy = 154 cm⁴, elastic section modulus Wel,y = 23.2 cm³.

Cross section · mm

100Long leg a · mm

65Short leg b · mm

15.60Area A · cm²

12.30Mass G · kg/m

Geometry

Long leg a100.00 mm

Short leg b65.00 mm

Thickness t10.00 mm

Root radius r₁10.00 mm

Cross-section area A15.600 cm²

Centroid C_x33.6 mm

Centroid C_y16.3 mm

Weight G
steel 7850 kg/m³12.30kg/m

Section properties

I_y154.000 cm⁴

I_z51.000 cm⁴

W_el,y23.200 cm³

W_el,z10.500 cm³

i_y31.40 mm

i_z18.10 mm

Principal axes u–v

I_u175.000 cm⁴

I_v30.200 cm⁴

i_v13.90 mm

tan α0.410 –

Reference

Profile standardEN 10056-1

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of L 100×65/10 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/ 6.4 kN·m

Shear/ 123.8 kN

Compression/ 23.1 kN

Steelγ_M0γ_M1L_crmmkClass3

Resistances and factors

M_c,y,Rd / M_c,z,RdW_el6.4 kN·m / 2.9 kN·m

V_c,z,Rd / V_c,y,RdA_v = 780 mm²123.8 kN / 123.8 kN

N_pl,Rd / N_b,Rd429.0 kN / 23.1 kN

N_cr,y / N_cr,v127.7 kN / 25.0 kN

f_yEN 10025-2275 MPa

γ_M0 / γ_M11.00 / 1.00

Curve b · χ0.05

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.