LU · EN 10056-1

L 100×65/8

L 100×65/8 is an unequal-leg steel angle per EN 10056-1: legs 100×65 mm, thickness 8 mm, weight 9.9 kg/m, cross-section area 12.7 cm², moment of inertia Iy = 127 cm⁴, elastic section modulus Wel,y = 18.9 cm³.

Cross section · mm

100Long leg a · mm

65Short leg b · mm

12.70Area A · cm²

9.94Mass G · kg/m

Geometry

Long leg a100.00 mm

Short leg b65.00 mm

Thickness t8.00 mm

Root radius r₁10.00 mm

Cross-section area A12.700 cm²

Centroid C_x32.7 mm

Centroid C_y15.5 mm

Weight G
steel 7850 kg/m³9.94kg/m

Section properties

I_y127.000 cm⁴

I_z42.200 cm⁴

W_el,y18.900 cm³

W_el,z8.540 cm³

i_y31.60 mm

i_z18.30 mm

Principal axes u–v

I_u144.000 cm⁴

I_v24.800 cm⁴

i_v14.00 mm

tan α0.413 –

Reference

Profile standardEN 10056-1

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of L 100×65/8 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/ 5.2 kN·m

Shear/ 100.8 kN

Compression/ 19.0 kN

Steelγ_M0γ_M1L_crmmkClass3

Resistances and factors

M_c,y,Rd / M_c,z,RdW_el5.2 kN·m / 2.3 kN·m

V_c,z,Rd / V_c,y,RdA_v = 635 mm²100.8 kN / 100.8 kN

N_pl,Rd / N_b,Rd349.3 kN / 19.0 kN

N_cr,y / N_cr,v105.3 kN / 20.6 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.