ISA 45x30x4 · 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 45x30x4 (UK)

The ISA 45x30x4 steel profile weighs 2.3 kg/m (1.55 lb/ft), has a depth of 45 mm (1.77 in), flange width 30 mm (1.18 in). Cross-sectional area: 284 mm². Moment of inertia Ix = 5.82 cm⁴, Iy = 2.09 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	45 mm	1.77 in
Width (b)	30 mm	1.18 in
Thickness (t)	4 mm	0.16 in
Fillet radius (r)	7 mm	0.28 in
Weight	2.3 kg/m	1.55 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	284 mm²	0.440 in²
Moment of inertia (Ix)	5.82 cm⁴	0.14 in⁴
Moment of inertia (Iy)	2.09 cm⁴	0.05 in⁴
Elastic section modulus (Sx)	1.94 cm³	0.118 in³
Elastic section modulus (Sy)	0.93 cm³	0.057 in³
Plastic section modulus (Zx)	2.91 cm³	0.178 in³
Plastic section modulus (Zy)	1.39 cm³	0.085 in³
Radius of gyration (rx)	1.43 cm	0.563 in
Radius of gyration (ry)	0.86 cm	0.339 in