ISA 40x40x4 · Weight & Dimensions

IS — 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: ISA 40x40x4 (UK)

The ISA 40x40x4 steel profile weighs 2.4 kg/m (1.61 lb/ft), has a depth of 40 mm (1.57 in), flange width 40 mm (1.57 in). Cross-sectional area: 304 mm². Moment of inertia Ix = 4.61 cm⁴, Iy = 4.61 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	40 mm	1.57 in
Width (b)	40 mm	1.57 in
Thickness (t)	4 mm	0.16 in
Fillet radius (r)	6 mm	0.24 in
Weight	2.4 kg/m	1.61 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	304 mm²	0.471 in²
Moment of inertia (Ix)	4.61 cm⁴	0.11 in⁴
Moment of inertia (Iy)	4.61 cm⁴	0.11 in⁴
Elastic section modulus (Sx)	1.62 cm³	0.099 in³
Elastic section modulus (Sy)	1.62 cm³	0.099 in³
Plastic section modulus (Zx)	2.42 cm³	0.148 in³
Plastic section modulus (Zy)	2.42 cm³	0.148 in³
Radius of gyration (rx)	1.23 cm	0.484 in
Radius of gyration (ry)	1.23 cm	0.484 in