U 120x50x3.2 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 120x50x3.2 (UK / Australia)

The U 120x50x3.2 steel profile weighs 5.3 kg/m (3.53 lb/ft), has a depth of 120 mm (4.72 in), flange width 50 mm (1.97 in). Cross-sectional area: 670.315 mm². Moment of inertia Ix = 143.536 cm⁴, Iy = 15.812 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	120 mm	4.72 in
Width (b)	50 mm	1.97 in
Thickness (t)	3.2 mm	0.13 in
Weight	5.3 kg/m	3.53 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	670.32 mm²	1.039 in²
Moment of inertia (Ix)	143.54 cm⁴	3.45 in⁴
Moment of inertia (Iy)	15.81 cm⁴	0.38 in⁴
Elastic section modulus (Sx)	23.92 cm³	1.460 in³
Elastic section modulus (Sy)	4.25 cm³	0.259 in³
Plastic section modulus (Zx)	29 cm³	1.770 in³
Plastic section modulus (Zy)	5.59 cm³	0.341 in³
Radius of gyration (rx)	4.63 cm	1.822 in
Radius of gyration (ry)	1.54 cm	0.605 in