U 300x100x3 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 300x100x3 (UK / Australia)

The U 300x100x3 steel profile weighs 11.5 kg/m (7.75 lb/ft), has a depth of 300 mm (11.81 in), flange width 100 mm (3.94 in). Cross-sectional area: 1,470.394 mm². Moment of inertia Ix = 1,932.433 cm⁴, Iy = 133.549 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	300 mm	11.81 in
Width (b)	100 mm	3.94 in
Thickness (t)	3 mm	0.12 in
Fillet radius (r)	3 mm	0.12 in
Weight	11.5 kg/m	7.75 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,470.39 mm²	2.279 in²
Moment of inertia (Ix)	1,932.43 cm⁴	46.43 in⁴
Moment of inertia (Iy)	133.55 cm⁴	3.21 in⁴
Elastic section modulus (Sx)	128.83 cm³	7.862 in³
Elastic section modulus (Sy)	16.97 cm³	1.036 in³
Plastic section modulus (Zx)	153.92 cm³	9.393 in³
Plastic section modulus (Zy)	22.14 cm³	1.351 in³
Radius of gyration (rx)	11.46 cm	4.513 in
Radius of gyration (ry)	3.01 cm	1.187 in