U 100x50x2.5 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 100x50x2.5 (UK / Australia)

The U 100x50x2.5 steel profile weighs 3.8 kg/m (2.53 lb/ft), has a depth of 100 mm (3.94 in), flange width 50 mm (1.97 in). Cross-sectional area: 479.441 mm². Moment of inertia Ix = 75.286 cm⁴, Iy = 11.947 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	100 mm	3.94 in
Width (b)	50 mm	1.97 in
Thickness (t)	2.5 mm	0.10 in
Weight	3.8 kg/m	2.53 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	479.44 mm²	0.743 in²
Moment of inertia (Ix)	75.29 cm⁴	1.81 in⁴
Moment of inertia (Iy)	11.95 cm⁴	0.29 in⁴
Elastic section modulus (Sx)	15.06 cm³	0.919 in³
Elastic section modulus (Sy)	3.29 cm³	0.201 in³
Plastic section modulus (Zx)	17.82 cm³	1.088 in³
Plastic section modulus (Zy)	4.32 cm³	0.264 in³
Radius of gyration (rx)	3.96 cm	1.560 in
Radius of gyration (ry)	1.58 cm	0.621 in