L 55x55x4 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 55x55x4 (UK)

The L 55x55x4 steel profile weighs 3.3 kg/m (2.24 lb/ft), has a depth of 55 mm (2.17 in), flange width 55 mm (2.17 in). Cross-sectional area: 424 mm². Moment of inertia Ix = 12.456 cm⁴, Iy = 12.456 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	55 mm	2.17 in
Width (b)	55 mm	2.17 in
Thickness (t)	4 mm	0.16 in
Weight	3.3 kg/m	2.24 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	424 mm²	0.657 in²
Moment of inertia (Ix)	12.46 cm⁴	0.30 in⁴
Moment of inertia (Iy)	12.46 cm⁴	0.30 in⁴
Elastic section modulus (Sx)	3.13 cm³	0.191 in³
Elastic section modulus (Sy)	3.13 cm³	0.191 in³
Plastic section modulus (Zx)	4.7 cm³	0.287 in³
Plastic section modulus (Zy)	4.7 cm³	0.287 in³
Radius of gyration (rx)	1.71 cm	0.675 in
Radius of gyration (ry)	1.71 cm	0.675 in