U 120x70x3 Arval · Weight & Dimensions

Arval, cold-formed sections · 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 120x70x3 (UK / Australia)

The U 120x70x3 steel profile weighs 5.9 kg/m (3.94 lb/ft), has a depth of 120 mm (4.72 in), flange width 70 mm (2.76 in). Cross-sectional area: 747.815 mm². Moment of inertia Ix = 175.72 cm⁴, Iy = 37.763 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	120 mm	4.72 in
Width (b)	70 mm	2.76 in
Thickness (t)	3 mm	0.12 in
Fillet radius (r)	4 mm	0.16 in
Weight	5.9 kg/m	3.94 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	747.82 mm²	1.159 in²
Moment of inertia (Ix)	175.72 cm⁴	4.22 in⁴
Moment of inertia (Iy)	37.76 cm⁴	0.91 in⁴
Elastic section modulus (Sx)	29.29 cm³	1.787 in³
Elastic section modulus (Sy)	7.6 cm³	0.464 in³
Plastic section modulus (Zx)	34.31 cm³	2.094 in³
Plastic section modulus (Zy)	10.03 cm³	0.612 in³
Radius of gyration (rx)	4.85 cm	1.908 in
Radius of gyration (ry)	2.25 cm	0.885 in