U 300x100x4 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 300x100x4 (UK / Australia)

The U 300x100x4 steel profile weighs 15.3 kg/m (10.27 lb/ft), has a depth of 300 mm (11.81 in), flange width 100 mm (3.94 in). Cross-sectional area: 1,947.368 mm². Moment of inertia Ix = 2,536.053 cm⁴, Iy = 175.275 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)	4 mm	0.16 in
Fillet radius (r)	4 mm	0.16 in
Weight	15.3 kg/m	10.27 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,947.37 mm²	3.018 in²
Moment of inertia (Ix)	2,536.05 cm⁴	60.93 in⁴
Moment of inertia (Iy)	175.28 cm⁴	4.21 in⁴
Elastic section modulus (Sx)	169.07 cm³	10.317 in³
Elastic section modulus (Sy)	22.4 cm³	1.367 in³
Plastic section modulus (Zx)	203.65 cm³	12.427 in³
Plastic section modulus (Zy)	29.26 cm³	1.786 in³
Radius of gyration (rx)	11.41 cm	4.493 in
Radius of gyration (ry)	3 cm	1.181 in