U 170x50x3 Arval · Weight & Dimensions

Arval, 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 170x50x3 (UK / Australia)

The U 170x50x3 steel profile weighs 6.1 kg/m (4.11 lb/ft), has a depth of 170 mm (6.69 in), flange width 50 mm (1.97 in). Cross-sectional area: 777.815 mm². Moment of inertia Ix = 309.245 cm⁴, Iy = 16.428 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	170 mm	6.69 in
Width (b)	50 mm	1.97 in
Thickness (t)	3 mm	0.12 in
Fillet radius (r)	4 mm	0.16 in
Weight	6.1 kg/m	4.11 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	777.82 mm²	1.206 in²
Moment of inertia (Ix)	309.24 cm⁴	7.43 in⁴
Moment of inertia (Iy)	16.43 cm⁴	0.39 in⁴
Elastic section modulus (Sx)	36.38 cm³	2.220 in³
Elastic section modulus (Sy)	4.17 cm³	0.254 in³
Plastic section modulus (Zx)	45.22 cm³	2.759 in³
Plastic section modulus (Zy)	5.47 cm³	0.334 in³
Radius of gyration (rx)	6.31 cm	2.482 in
Radius of gyration (ry)	1.45 cm	0.572 in