U 300x50x3 Cintac · Weight & Dimensions

Cintac, 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 300x50x3 (UK / Australia)

The U 300x50x3 steel profile weighs 9.2 kg/m (6.18 lb/ft), has a depth of 300 mm (11.81 in), flange width 50 mm (1.97 in). Cross-sectional area: 1,170.394 mm². Moment of inertia Ix = 1,270.843 cm⁴, Iy = 18.618 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	300 mm	11.81 in
Width (b)	50 mm	1.97 in
Thickness (t)	3 mm	0.12 in
Fillet radius (r)	3 mm	0.12 in
Weight	9.2 kg/m	6.18 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,170.39 mm²	1.814 in²
Moment of inertia (Ix)	1,270.84 cm⁴	30.53 in⁴
Moment of inertia (Iy)	18.62 cm⁴	0.45 in⁴
Elastic section modulus (Sx)	84.72 cm³	5.170 in³
Elastic section modulus (Sy)	4.38 cm³	0.268 in³
Plastic section modulus (Zx)	109.37 cm³	6.674 in³
Plastic section modulus (Zy)	5.72 cm³	0.349 in³
Radius of gyration (rx)	10.42 cm	4.102 in
Radius of gyration (ry)	1.26 cm	0.497 in