L · EN 10056-1

L 200×200/21

L 200×200/21 is an equal-leg steel angle per EN 10056-1: leg length 200 mm, thickness 21 mm, weight 62.7 kg/m, cross-section area 79.9 cm², moment of inertia Iy = 2973 cm⁴, elastic section modulus Wel,y = 208.2 cm³.

Cross section · mm

200Leg a · mm

21Thickness t · mm

79.90Area A · cm²

62.70Mass G · kg/m

Geometry

Leg length a200.00 mm

Thickness t21.00 mm

Cross-section area A79.900 cm²

Centroid C_x=C_y57.2 mm

Weight G
steel 7850 kg/m³62.70kg/m

Section properties

Moment of inertia I_y=I_z2 973.000 cm⁴

Section modulus W_el208.193 cm³

Plastic modulus W_pl377.500 cm³

Radius of gyration i_y61.00 mm

Principal axes u–v

I_u4 725.000 cm⁴

I_v1 221.000 cm⁴

Reference

Profile standardEN 10056-1

EurocodeEN 1993-1-1 (EC3)

Check to EN 1993-1-1

Work out the utilisation of L 200×200/21 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/ 55.2 kN·m

Shear/ 611.2 kN

Compression/ 768.1 kN

Steelγ_M0γ_M1L_crmmkf_y265MPaClass3

Resistances and factors

M_c,y,Rd / M_c,z,RdW_el55.2 kN·m / 55.2 kN·m

V_c,z,Rd / V_c,y,RdA_v = 3995 mm²611.2 kN / 611.2 kN

N_pl,Rd / N_b,Rd2.12 MN / 768.1 kN

N_cr,y / N_cr,v2.46 MN / 1.01 MN

f_yt = 21.0 mm > 16 mm, EN 10025-2265 MPa

γ_M0 / γ_M11.00 / 1.00

Curve b · χ0.36

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.