U 220x70x6.35 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 220x70x6.35 (UK / Australia)

The U 220x70x6.35 steel profile weighs 16.9 kg/m (11.36 lb/ft), has a depth of 220 mm (8.66 in), flange width 70 mm (2.76 in). Cross-sectional area: 2,153.359 mm². Moment of inertia Ix = 1,423.714 cm⁴, Iy = 89.21 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)	6.3 mm	0.25 in
Weight	16.9 kg/m	11.36 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,153.36 mm²	3.338 in²
Moment of inertia (Ix)	1,423.71 cm⁴	34.20 in⁴
Moment of inertia (Iy)	89.21 cm⁴	2.14 in⁴
Elastic section modulus (Sx)	129.43 cm³	7.898 in³
Elastic section modulus (Sy)	16.64 cm³	1.015 in³
Plastic section modulus (Zx)	163.12 cm³	9.954 in³
Plastic section modulus (Zy)	21.91 cm³	1.337 in³
Radius of gyration (rx)	8.13 cm	3.201 in
Radius of gyration (ry)	2.04 cm	0.801 in