U 300 x 45,2 SAISC · Weight & Dimensions

SAISC, 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 300 x 45,2 (UK / Australia)

The U 300 x 45,2 steel profile weighs 45.2 kg/m (30.39 lb/ft), has a depth of 300 mm (11.81 in), flange width 100 mm (3.94 in). Cross-sectional area: 5,764.805 mm². Moment of inertia Ix = 8,171.563 cm⁴, Iy = 566.759 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	300 mm	11.81 in
Width (b)	100 mm	3.94 in
Web thickness (tw)	9 mm	0.35 in
Flange thickness (tf)	16.5 mm	0.65 in
Fillet radius (r)	12 mm	0.47 in
Weight	45.2 kg/m	30.39 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	5,764.81 mm²	8.935 in²
Moment of inertia (Ix)	8,171.56 cm⁴	196.32 in⁴
Moment of inertia (Iy)	566.76 cm⁴	13.62 in⁴
Elastic section modulus (Sx)	544.77 cm³	33.244 in³
Elastic section modulus (Sy)	81.69 cm³	4.985 in³
Plastic section modulus (Zx)	636.26 cm³	38.827 in³
Plastic section modulus (Zy)	148.24 cm³	9.046 in³
Radius of gyration (rx)	11.91 cm	4.687 in
Radius of gyration (ry)	3.14 cm	1.234 in