L · EN 10056-1

L 100×100/18

L 100×100/18 is an equal-leg steel angle per EN 10056-1: leg length 100 mm, thickness 18 mm, weight 25.8 kg/m, cross-section area 32.9 cm², moment of inertia Iy = 287 cm⁴, elastic section modulus Wel,y = 41.8 cm³.

Cross section · mm

100Leg a · mm

18Thickness t · mm

32.90Area A · cm²

25.80Mass G · kg/m

Geometry

Leg length a100.00 mm

Thickness t18.00 mm

Cross-section area A32.900 cm²

Centroid C_x=C_y31.3 mm

Weight G
steel 7850 kg/m³25.80kg/m

Section properties

Moment of inertia I_y=I_z287.000 cm⁴

Section modulus W_el41.776 cm³

Plastic modulus W_pl75.940 cm³

Radius of gyration i_y29.50 mm

Principal axes u–v

I_u451.600 cm⁴

I_v122.000 cm⁴

Reference

Profile standardEN 10056-1

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of L 100×100/18 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/ 11.1 kN·m

Shear/ 251.7 kN

Compression/ 90.3 kN

Steelγ_M0γ_M1L_crmmkf_y265MPaClass3

Resistances and factors

M_c,y,Rd / M_c,z,RdW_el11.1 kN·m / 11.1 kN·m

V_c,z,Rd / V_c,y,RdA_v = 1645 mm²251.7 kN / 251.7 kN

N_pl,Rd / N_b,Rd871.9 kN / 90.3 kN

N_cr,y / N_cr,v237.9 kN / 101.1 kN

f_yt = 18.0 mm > 16 mm, EN 10025-2265 MPa

γ_M0 / γ_M11.00 / 1.00

Curve b · χ0.10

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.