U 100x50x4 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 100x50x4 (UK / Australia)

The U 100x50x4 steel profile weighs 5.9 kg/m (3.94 lb/ft), has a depth of 100 mm (3.94 in), flange width 50 mm (1.97 in). Cross-sectional area: 747.368 mm². Moment of inertia Ix = 113.063 cm⁴, Iy = 18.125 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)	4 mm	0.16 in
Weight	5.9 kg/m	3.94 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	747.37 mm²	1.158 in²
Moment of inertia (Ix)	113.06 cm⁴	2.72 in⁴
Moment of inertia (Iy)	18.12 cm⁴	0.44 in⁴
Elastic section modulus (Sx)	22.61 cm³	1.380 in³
Elastic section modulus (Sy)	5.09 cm³	0.310 in³
Plastic section modulus (Zx)	27.65 cm³	1.687 in³
Plastic section modulus (Zy)	6.75 cm³	0.412 in³
Radius of gyration (rx)	3.89 cm	1.531 in
Radius of gyration (ry)	1.56 cm	0.613 in