U 70x45x3 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 70x45x3 (UK / Australia)

The U 70x45x3 steel profile weighs 3.5 kg/m (2.38 lb/ft), has a depth of 70 mm (2.76 in), flange width 45 mm (1.77 in). Cross-sectional area: 450.394 mm². Moment of inertia Ix = 35.468 cm⁴, Iy = 9.3 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	70 mm	2.76 in
Width (b)	45 mm	1.77 in
Thickness (t)	3 mm	0.12 in
Fillet radius (r)	3 mm	0.12 in
Weight	3.5 kg/m	2.38 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	450.39 mm²	0.698 in²
Moment of inertia (Ix)	35.47 cm⁴	0.85 in⁴
Moment of inertia (Iy)	9.3 cm⁴	0.22 in⁴
Elastic section modulus (Sx)	10.13 cm³	0.618 in³
Elastic section modulus (Sy)	3.01 cm³	0.184 in³
Plastic section modulus (Zx)	12.11 cm³	0.739 in³
Plastic section modulus (Zy)	4 cm³	0.244 in³
Radius of gyration (rx)	2.81 cm	1.105 in
Radius of gyration (ry)	1.44 cm	0.566 in