L · EN 10056-1

L 120×120/12

L 120×120/12 is an equal-leg steel angle per EN 10056-1: leg length 120 mm, thickness 12 mm, weight 21.6 kg/m, cross-section area 27.5 cm², moment of inertia Iy = 367.7 cm⁴, elastic section modulus Wel,y = 42.8 cm³.

Cross section · mm

120Leg a · mm

12Thickness t · mm

27.50Area A · cm²

21.60Mass G · kg/m

Geometry

Leg length a120.00 mm

Thickness t12.00 mm

Cross-section area A27.500 cm²

Centroid C_x=C_y34.0 mm

Weight G
steel 7850 kg/m³21.60kg/m

Section properties

Moment of inertia I_y=I_z367.700 cm⁴

Section modulus W_el42.756 cm³

Plastic modulus W_pl77.720 cm³

Radius of gyration i_y36.50 mm

Principal axes u–v

I_u584.300 cm⁴

I_v151.100 cm⁴

Reference

Profile standardEN 10056-1

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of L 120×120/12 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/ 11.8 kN·m

Shear/ 218.3 kN

Compression/ 109.1 kN

Steelγ_M0γ_M1L_crmmkClass3

Resistances and factors

M_c,y,Rd / M_c,z,RdW_el11.8 kN·m / 11.8 kN·m

V_c,z,Rd / V_c,y,RdA_v = 1375 mm²218.3 kN / 218.3 kN

N_pl,Rd / N_b,Rd756.3 kN / 109.1 kN

N_cr,y / N_cr,v304.8 kN / 125.3 kN

f_yEN 10025-2275 MPa

γ_M0 / γ_M11.00 / 1.00

Curve b · χ0.14

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.