U 84x40x2 Acindar · Weight & Dimensions

Acindar, 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 84x40x2 (UK / Australia)

The U 84x40x2 steel profile weighs 2.5 kg/m (1.66 lb/ft), has a depth of 84 mm (3.31 in), flange width 40 mm (1.57 in). Cross-sectional area: 314.842 mm². Moment of inertia Ix = 34.53 cm⁴, Iy = 4.97 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	84 mm	3.31 in
Width (b)	40 mm	1.57 in
Thickness (t)	2 mm	0.08 in
Fillet radius (r)	2 mm	0.08 in
Weight	2.5 kg/m	1.66 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	314.84 mm²	0.488 in²
Moment of inertia (Ix)	34.53 cm⁴	0.83 in⁴
Moment of inertia (Iy)	4.97 cm⁴	0.12 in⁴
Elastic section modulus (Sx)	8.22 cm³	0.502 in³
Elastic section modulus (Sy)	1.69 cm³	0.103 in³
Plastic section modulus (Zx)	9.76 cm³	0.595 in³
Plastic section modulus (Zy)	2.23 cm³	0.136 in³
Radius of gyration (rx)	3.31 cm	1.304 in
Radius of gyration (ry)	1.26 cm	0.495 in