U 220x70x3.2 IAS · Weight & Dimensions

IAS, 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 220x70x3.2 (UK / Australia)

The U 220x70x3.2 steel profile weighs 8.8 kg/m (5.90 lb/ft), has a depth of 220 mm (8.66 in), flange width 70 mm (2.76 in). Cross-sectional area: 1,118.315 mm². Moment of inertia Ix = 770.42 cm⁴, Iy = 48.257 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	220 mm	8.66 in
Width (b)	70 mm	2.76 in
Thickness (t)	3.2 mm	0.13 in
Weight	8.8 kg/m	5.90 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,118.32 mm²	1.733 in²
Moment of inertia (Ix)	770.42 cm⁴	18.51 in⁴
Moment of inertia (Iy)	48.26 cm⁴	1.16 in⁴
Elastic section modulus (Sx)	70.04 cm³	4.274 in³
Elastic section modulus (Sy)	8.77 cm³	0.535 in³
Plastic section modulus (Zx)	85.05 cm³	5.190 in³
Plastic section modulus (Zy)	11.47 cm³	0.700 in³
Radius of gyration (rx)	8.3 cm	3.268 in
Radius of gyration (ry)	2.08 cm	0.818 in