U 100x30x3 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 100x30x3 (UK / Australia)

The U 100x30x3 steel profile weighs 3.5 kg/m (2.38 lb/ft), has a depth of 100 mm (3.94 in), flange width 30 mm (1.18 in). Cross-sectional area: 450.394 mm². Moment of inertia Ix = 60.238 cm⁴, Iy = 3.323 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	100 mm	3.94 in
Width (b)	30 mm	1.18 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)	60.24 cm⁴	1.45 in⁴
Moment of inertia (Iy)	3.32 cm⁴	0.08 in⁴
Elastic section modulus (Sx)	12.05 cm³	0.735 in³
Elastic section modulus (Sy)	1.44 cm³	0.088 in³
Plastic section modulus (Zx)	15.35 cm³	0.937 in³
Plastic section modulus (Zy)	1.9 cm³	0.116 in³
Radius of gyration (rx)	3.66 cm	1.440 in
Radius of gyration (ry)	0.86 cm	0.338 in