U 120x50x4.75 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 120x50x4.75 (UK / Australia)

The U 120x50x4.75 steel profile weighs 7.6 kg/m (5.12 lb/ft), has a depth of 120 mm (4.72 in), flange width 50 mm (1.97 in). Cross-sectional area: 970.781 mm². Moment of inertia Ix = 200.855 cm⁴, Iy = 22.271 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)	4.8 mm	0.19 in
Weight	7.6 kg/m	5.12 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	970.78 mm²	1.505 in²
Moment of inertia (Ix)	200.86 cm⁴	4.83 in⁴
Moment of inertia (Iy)	22.27 cm⁴	0.54 in⁴
Elastic section modulus (Sx)	33.48 cm³	2.043 in³
Elastic section modulus (Sy)	6.1 cm³	0.372 in³
Plastic section modulus (Zx)	41.84 cm³	2.554 in³
Plastic section modulus (Zy)	8.09 cm³	0.494 in³
Radius of gyration (rx)	4.55 cm	1.791 in
Radius of gyration (ry)	1.51 cm	0.596 in