U 100x75x4 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 100x75x4 (UK / Australia)

The U 100x75x4 steel profile weighs 7.4 kg/m (5.00 lb/ft), has a depth of 100 mm (3.94 in), flange width 75 mm (2.95 in). Cross-sectional area: 947.368 mm². Moment of inertia Ix = 159.169 cm⁴, Iy = 55.733 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	100 mm	3.94 in
Width (b)	75 mm	2.95 in
Thickness (t)	4 mm	0.16 in
Fillet radius (r)	4 mm	0.16 in
Weight	7.4 kg/m	5.00 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	947.37 mm²	1.468 in²
Moment of inertia (Ix)	159.17 cm⁴	3.82 in⁴
Moment of inertia (Iy)	55.73 cm⁴	1.34 in⁴
Elastic section modulus (Sx)	31.83 cm³	1.943 in³
Elastic section modulus (Sy)	11.04 cm³	0.674 in³
Plastic section modulus (Zx)	37.25 cm³	2.273 in³
Plastic section modulus (Zy)	14.65 cm³	0.894 in³
Radius of gyration (rx)	4.1 cm	1.614 in
Radius of gyration (ry)	2.43 cm	0.955 in