L · EN 10056-1

L 70×70/5

L 70×70/5 is an equal-leg steel angle per EN 10056-1: leg length 70 mm, thickness 5 mm, weight 5.4 kg/m, cross-section area 6.8 cm², moment of inertia Iy = 31.2 cm⁴, elastic section modulus Wel,y = 6.1 cm³.

Cross section · mm

70Leg a · mm

5Thickness t · mm

6.84Area A · cm²

5.40Mass G · kg/m

Geometry

Leg length a70.00 mm

Thickness t5.00 mm

Cross-section area A6.840 cm²

Centroid C_x=C_y18.8 mm

Weight G
steel 7850 kg/m³5.40kg/m

Section properties

Moment of inertia I_y=I_z31.240 cm⁴

Section modulus W_el6.102 cm³

Plastic modulus W_pl11.190 cm³

Radius of gyration i_y21.40 mm

Principal axes u–v

I_u49.610 cm⁴

I_v12.860 cm⁴

Reference

Profile standardEN 10056-1

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of L 70×70/5 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/ —

Shear/ 54.3 kN

Compression/ —

Bending and compression are not available for class 4 sections; effective properties per EN 1993-1-5 are required.

Steelγ_M0γ_M1L_crmmkClass4

Resistances and factors

M_c,y,Rd / M_c,z,Rd— / —

V_c,z,Rd / V_c,y,RdA_v = 342 mm²54.3 kN / 54.3 kN

N_pl,Rd / N_b,Rd— / —

N_cr,y / N_cr,v25.9 kN / 10.7 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.