U 300x75x3 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 300x75x3 (UK / Australia)

The U 300x75x3 steel profile weighs 10.4 kg/m (6.97 lb/ft), has a depth of 300 mm (11.81 in), flange width 75 mm (2.95 in). Cross-sectional area: 1,320.394 mm². Moment of inertia Ix = 1,601.638 cm⁴, Iy = 59.565 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	300 mm	11.81 in
Width (b)	75 mm	2.95 in
Thickness (t)	3 mm	0.12 in
Fillet radius (r)	3 mm	0.12 in
Weight	10.4 kg/m	6.97 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,320.39 mm²	2.047 in²
Moment of inertia (Ix)	1,601.64 cm⁴	38.48 in⁴
Moment of inertia (Iy)	59.57 cm⁴	1.43 in⁴
Elastic section modulus (Sx)	106.78 cm³	6.516 in³
Elastic section modulus (Sy)	9.73 cm³	0.594 in³
Plastic section modulus (Zx)	131.65 cm³	8.034 in³
Plastic section modulus (Zy)	12.69 cm³	0.774 in³
Radius of gyration (rx)	11.01 cm	4.336 in
Radius of gyration (ry)	2.12 cm	0.836 in