U 90x45x3 Tecnometal · Weight & Dimensions

Tecnometal, cold-formed sections (Italy) · 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 90x45x3 (UK / Australia)

The U 90x45x3 steel profile weighs 4.0 kg/m (2.69 lb/ft), has a depth of 90 mm (3.54 in), flange width 45 mm (1.77 in). Cross-sectional area: 510.394 mm². Moment of inertia Ix = 63.598 cm⁴, Iy = 10.148 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	90 mm	3.54 in
Width (b)	45 mm	1.77 in
Thickness (t)	3 mm	0.12 in
Fillet radius (r)	3 mm	0.12 in
Weight	4.0 kg/m	2.69 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	510.39 mm²	0.791 in²
Moment of inertia (Ix)	63.6 cm⁴	1.53 in⁴
Moment of inertia (Iy)	10.15 cm⁴	0.24 in⁴
Elastic section modulus (Sx)	14.13 cm³	0.862 in³
Elastic section modulus (Sy)	3.14 cm³	0.191 in³
Plastic section modulus (Zx)	17.03 cm³	1.039 in³
Plastic section modulus (Zy)	4.14 cm³	0.253 in³
Radius of gyration (rx)	3.53 cm	1.390 in
Radius of gyration (ry)	1.41 cm	0.555 in