U 430 x 64,5 British Steel · Weight & Dimensions

British Steel, hot-rolled 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 430 x 64,5 (UK / Australia)

The U 430 x 64,5 steel profile weighs 64.5 kg/m (43.31 lb/ft), has a depth of 430 mm (16.93 in), flange width 100 mm (3.94 in). Cross-sectional area: 8,208.571 mm². Moment of inertia Ix = 21,939.074 cm⁴, Iy = 722.459 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	430 mm	16.93 in
Width (b)	100 mm	3.94 in
Web thickness (tw)	11 mm	0.43 in
Flange thickness (tf)	19 mm	0.75 in
Fillet radius (r)	15 mm	0.59 in
Weight	64.5 kg/m	43.31 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	8,208.57 mm²	12.723 in²
Moment of inertia (Ix)	21,939.07 cm⁴	527.09 in⁴
Moment of inertia (Iy)	722.46 cm⁴	17.36 in⁴
Elastic section modulus (Sx)	1,020.42 cm³	62.270 in³
Elastic section modulus (Sy)	97.9 cm³	5.974 in³
Plastic section modulus (Zx)	1,222.08 cm³	74.576 in³
Plastic section modulus (Zy)	175.93 cm³	10.736 in³
Radius of gyration (rx)	16.35 cm	6.436 in
Radius of gyration (ry)	2.97 cm	1.168 in