U 140x45x4.75 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 140x45x4.75 (UK / Australia)

The U 140x45x4.75 steel profile weighs 8.0 kg/m (5.37 lb/ft), has a depth of 140 mm (5.51 in), flange width 45 mm (1.77 in). Cross-sectional area: 1,018.281 mm². Moment of inertia Ix = 269.416 cm⁴, Iy = 17.267 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	140 mm	5.51 in
Width (b)	45 mm	1.77 in
Thickness (t)	4.8 mm	0.19 in
Weight	8.0 kg/m	5.37 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,018.28 mm²	1.578 in²
Moment of inertia (Ix)	269.42 cm⁴	6.47 in⁴
Moment of inertia (Iy)	17.27 cm⁴	0.41 in⁴
Elastic section modulus (Sx)	38.49 cm³	2.349 in³
Elastic section modulus (Sy)	5.06 cm³	0.309 in³
Plastic section modulus (Zx)	49.11 cm³	2.997 in³
Plastic section modulus (Zy)	6.68 cm³	0.408 in³
Radius of gyration (rx)	5.14 cm	2.025 in
Radius of gyration (ry)	1.3 cm	0.513 in