U 120x50x2.5 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 120x50x2.5 (UK / Australia)

The U 120x50x2.5 steel profile weighs 4.2 kg/m (2.80 lb/ft), has a depth of 120 mm (4.72 in), flange width 50 mm (1.97 in). Cross-sectional area: 529.441 mm². Moment of inertia Ix = 115.1 cm⁴, Iy = 12.646 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)	2.5 mm	0.10 in
Weight	4.2 kg/m	2.80 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	529.44 mm²	0.821 in²
Moment of inertia (Ix)	115.1 cm⁴	2.77 in⁴
Moment of inertia (Iy)	12.65 cm⁴	0.30 in⁴
Elastic section modulus (Sx)	19.18 cm³	1.171 in³
Elastic section modulus (Sy)	3.37 cm³	0.206 in³
Plastic section modulus (Zx)	22.95 cm³	1.400 in³
Plastic section modulus (Zy)	4.42 cm³	0.270 in³
Radius of gyration (rx)	4.66 cm	1.836 in
Radius of gyration (ry)	1.55 cm	0.608 in