U 100x50x3.42 Tecnometal · Weight & Dimensions

Tecnometal, cold-formed sections (Brazil) · 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 100x50x3.42 (UK / Australia)

The U 100x50x3.42 steel profile weighs 5.1 kg/m (3.41 lb/ft), has a depth of 100 mm (3.94 in), flange width 50 mm (1.97 in). Cross-sectional area: 645.525 mm². Moment of inertia Ix = 99.089 cm⁴, Iy = 15.821 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 3.42 mm ≈ 10 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	100 mm	3.94 in
Width (b)	50 mm	1.97 in
Thickness (t)	3.4 mm	0.13 in
Fillet radius (r)	3.4 mm	0.13 in
Weight	5.1 kg/m	3.41 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	645.52 mm²	1.001 in²
Moment of inertia (Ix)	99.09 cm⁴	2.38 in⁴
Moment of inertia (Iy)	15.82 cm⁴	0.38 in⁴
Elastic section modulus (Sx)	19.82 cm³	1.209 in³
Elastic section modulus (Sy)	4.41 cm³	0.269 in³
Plastic section modulus (Zx)	23.93 cm³	1.460 in³
Plastic section modulus (Zy)	5.82 cm³	0.355 in³
Radius of gyration (rx)	3.92 cm	1.542 in
Radius of gyration (ry)	1.57 cm	0.616 in