L 40x20x3 IS · Weight & Dimensions

IS, hot-rolled sections · Angle Section

Angle sections (L shapes) are used for bracing, connections, lintels, and built-up members. Available in equal and unequal leg configurations.

Also known as: RSA 40x20x3 (UK)

The L 40x20x3 steel profile weighs 1.4 kg/m (0.91 lb/ft), has a depth of 40 mm (1.57 in), flange width 20 mm (0.79 in). Cross-sectional area: 171 mm². Moment of inertia Ix = 2.829 cm⁴, Iy = 0.49 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	40 mm	1.57 in
Width (b)	20 mm	0.79 in
Thickness (t)	3 mm	0.12 in
Weight	1.4 kg/m	0.91 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	171 mm²	0.265 in²
Moment of inertia (Ix)	2.83 cm⁴	0.07 in⁴
Moment of inertia (Iy)	0.49 cm⁴	0.01 in⁴
Elastic section modulus (Sx)	1.11 cm³	0.068 in³
Elastic section modulus (Sy)	0.32 cm³	0.019 in³
Plastic section modulus (Zx)	1.66 cm³	0.101 in³
Plastic section modulus (Zy)	0.47 cm³	0.029 in³
Radius of gyration (rx)	1.29 cm	0.506 in
Radius of gyration (ry)	0.54 cm	0.211 in