U 80x35x3.2 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 80x35x3.2 (UK / Australia)

The U 80x35x3.2 steel profile weighs 3.5 kg/m (2.35 lb/ft), has a depth of 80 mm (3.15 in), flange width 35 mm (1.38 in). Cross-sectional area: 446.315 mm². Moment of inertia Ix = 41.589 cm⁴, Iy = 5.097 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	80 mm	3.15 in
Width (b)	35 mm	1.38 in
Thickness (t)	3.2 mm	0.13 in
Weight	3.5 kg/m	2.35 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	446.32 mm²	0.692 in²
Moment of inertia (Ix)	41.59 cm⁴	1.00 in⁴
Moment of inertia (Iy)	5.1 cm⁴	0.12 in⁴
Elastic section modulus (Sx)	10.4 cm³	0.634 in³
Elastic section modulus (Sy)	2.01 cm³	0.123 in³
Plastic section modulus (Zx)	12.93 cm³	0.789 in³
Plastic section modulus (Zy)	2.66 cm³	0.163 in³
Radius of gyration (rx)	3.05 cm	1.202 in
Radius of gyration (ry)	1.07 cm	0.421 in