L · EN 10056-1

L 250×250/31

L 250×250/31 is an equal-leg steel angle per EN 10056-1: leg length 250 mm, thickness 31 mm, weight 114.1 kg/m, cross-section area 145.4 cm², moment of inertia Iy = 8313 cm⁴, elastic section modulus Wel,y = 470.7 cm³.

Cross section · mm

250Leg a · mm

31Thickness t · mm

145.40Area A · cm²

114.10Mass G · kg/m

Geometry

Leg length a250.00 mm

Thickness t31.00 mm

Cross-section area A145.400 cm²

Centroid C_x=C_y73.4 mm

Weight G
steel 7850 kg/m³114.10kg/m

Section properties

Moment of inertia I_y=I_z8 313.000 cm⁴

Section modulus W_el470.725 cm³

Plastic modulus W_pl854.800 cm³

Radius of gyration i_y75.60 mm

Principal axes u–v

I_u13 190.000 cm⁴

I_v3 439.000 cm⁴

Reference

Profile standardEN 10056-1

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of L 250×250/31 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/ 124.7 kN·m

Shear/ 1.11 MN

Compression/ 1.92 MN

Steelγ_M0γ_M1L_crmmkf_y265MPaClass3

Resistances and factors

M_c,y,Rd / M_c,z,RdW_el124.7 kN·m / 124.7 kN·m

V_c,z,Rd / V_c,y,RdA_v = 7270 mm²1.11 MN / 1.11 MN

N_pl,Rd / N_b,Rd3.85 MN / 1.92 MN

N_cr,y / N_cr,v6.89 MN / 2.85 MN

f_yt = 31.0 mm > 16 mm, EN 10025-2265 MPa

γ_M0 / γ_M11.00 / 1.00

Curve b · χ0.50

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.