U 80x35x4.75 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 80x35x4.75 (UK / Australia)

The U 80x35x4.75 steel profile weighs 5.0 kg/m (3.37 lb/ft), has a depth of 80 mm (3.15 in), flange width 35 mm (1.38 in). Cross-sectional area: 638.281 mm². Moment of inertia Ix = 56.419 cm⁴, Iy = 6.999 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)	4.8 mm	0.19 in
Weight	5.0 kg/m	3.37 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	638.28 mm²	0.989 in²
Moment of inertia (Ix)	56.42 cm⁴	1.36 in⁴
Moment of inertia (Iy)	7 cm⁴	0.17 in⁴
Elastic section modulus (Sx)	14.1 cm³	0.861 in³
Elastic section modulus (Sy)	2.84 cm³	0.173 in³
Plastic section modulus (Zx)	18.39 cm³	1.122 in³
Plastic section modulus (Zy)	3.82 cm³	0.233 in³
Radius of gyration (rx)	2.97 cm	1.170 in
Radius of gyration (ry)	1.05 cm	0.412 in