U 127x50x3.42 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 127x50x3.42 (UK / Australia)

The U 127x50x3.42 steel profile weighs 5.8 kg/m (3.89 lb/ft), has a depth of 127 mm (5.00 in), flange width 50 mm (1.97 in). Cross-sectional area: 737.865 mm². Moment of inertia Ix = 174.012 cm⁴, Iy = 17.067 cm⁴.

Cross-section (not to scale)

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

Dimensions

Property	Metric	Imperial
Depth (h)	127 mm	5.00 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	5.8 kg/m	3.89 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	737.86 mm²	1.144 in²
Moment of inertia (Ix)	174.01 cm⁴	4.18 in⁴
Moment of inertia (Iy)	17.07 cm⁴	0.41 in⁴
Elastic section modulus (Sx)	27.4 cm³	1.672 in³
Elastic section modulus (Sy)	4.56 cm³	0.278 in³
Plastic section modulus (Zx)	33.47 cm³	2.042 in³
Plastic section modulus (Zy)	5.99 cm³	0.366 in³
Radius of gyration (rx)	4.86 cm	1.912 in
Radius of gyration (ry)	1.52 cm	0.599 in