U 450x75x3 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 450x75x3 (UK / Australia)

The U 450x75x3 steel profile weighs 13.9 kg/m (9.34 lb/ft), has a depth of 450 mm (17.72 in), flange width 75 mm (2.95 in). Cross-sectional area: 1,770.394 mm². Moment of inertia Ix = 4,377.432 cm⁴, Iy = 64.661 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	450 mm	17.72 in
Width (b)	75 mm	2.95 in
Thickness (t)	3 mm	0.12 in
Fillet radius (r)	3 mm	0.12 in
Weight	13.9 kg/m	9.34 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,770.39 mm²	2.744 in²
Moment of inertia (Ix)	4,377.43 cm⁴	105.17 in⁴
Moment of inertia (Iy)	64.66 cm⁴	1.55 in⁴
Elastic section modulus (Sx)	194.55 cm³	11.872 in³
Elastic section modulus (Sy)	10.05 cm³	0.613 in³
Plastic section modulus (Zx)	248.42 cm³	15.160 in³
Plastic section modulus (Zy)	13.09 cm³	0.799 in³
Radius of gyration (rx)	15.72 cm	6.191 in
Radius of gyration (ry)	1.91 cm	0.752 in