U 125x50x2.65 ABNT NBR 6355 · Weight & Dimensions

ABNT NBR 6355 · 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 125x50x2.65 (UK / Australia)

The U 125x50x2.65 steel profile weighs 4.5 kg/m (3.02 lb/ft), has a depth of 125 mm (4.92 in), flange width 50 mm (1.97 in). Cross-sectional area: 573.149 mm². Moment of inertia Ix = 133.544 cm⁴, Iy = 13.501 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 2.65 mm ≈ 12 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	125 mm	4.92 in
Width (b)	50 mm	1.97 in
Thickness (t)	2.6 mm	0.10 in
Fillet radius (r)	2.6 mm	0.10 in
Weight	4.5 kg/m	3.02 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	573.15 mm²	0.888 in²
Moment of inertia (Ix)	133.54 cm⁴	3.21 in⁴
Moment of inertia (Iy)	13.5 cm⁴	0.32 in⁴
Elastic section modulus (Sx)	21.37 cm³	1.304 in³
Elastic section modulus (Sy)	3.58 cm³	0.218 in³
Plastic section modulus (Zx)	25.7 cm³	1.568 in³
Plastic section modulus (Zy)	4.7 cm³	0.287 in³
Radius of gyration (rx)	4.83 cm	1.900 in
Radius of gyration (ry)	1.53 cm	0.604 in