U 120x75x4 IAS · Weight & Dimensions

IAS, cold-formed sections · Cold-formed Channel

Cold-formed channels (U shapes) are similar to C shapes but without stiffening lips. Used for light structural framing, supports, and secondary members.

Also known as: U 120x75x4 (UK / Australia)

The U 120x75x4 steel profile weighs 8.1 kg/m (5.42 lb/ft), has a depth of 120 mm (4.72 in), flange width 75 mm (2.95 in). Cross-sectional area: 1,027.368 mm². Moment of inertia Ix = 241.384 cm⁴, Iy = 59.485 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	120 mm	4.72 in
Width (b)	75 mm	2.95 in
Thickness (t)	4 mm	0.16 in
Weight	8.1 kg/m	5.42 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,027.37 mm²	1.592 in²
Moment of inertia (Ix)	241.38 cm⁴	5.80 in⁴
Moment of inertia (Iy)	59.49 cm⁴	1.43 in⁴
Elastic section modulus (Sx)	40.23 cm³	2.455 in³
Elastic section modulus (Sy)	11.39 cm³	0.695 in³
Plastic section modulus (Zx)	47.33 cm³	2.888 in³
Plastic section modulus (Zy)	15.05 cm³	0.918 in³
Radius of gyration (rx)	4.85 cm	1.908 in
Radius of gyration (ry)	2.41 cm	0.947 in