U 300x75x4 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 300x75x4 (UK / Australia)

The U 300x75x4 steel profile weighs 13.7 kg/m (9.22 lb/ft), has a depth of 300 mm (11.81 in), flange width 75 mm (2.95 in). Cross-sectional area: 1,747.368 mm². Moment of inertia Ix = 2,097.946 cm⁴, Iy = 77.84 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)	4 mm	0.16 in
Fillet radius (r)	4 mm	0.16 in
Weight	13.7 kg/m	9.22 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,747.37 mm²	2.708 in²
Moment of inertia (Ix)	2,097.95 cm⁴	50.40 in⁴
Moment of inertia (Iy)	77.84 cm⁴	1.87 in⁴
Elastic section modulus (Sx)	139.86 cm³	8.535 in³
Elastic section modulus (Sy)	12.8 cm³	0.781 in³
Plastic section modulus (Zx)	174.05 cm³	10.621 in³
Plastic section modulus (Zy)	16.72 cm³	1.021 in³
Radius of gyration (rx)	10.96 cm	4.314 in
Radius of gyration (ry)	2.11 cm	0.831 in