U 75x40x3.04 Tecnometal · Weight & Dimensions

Tecnometal, cold-formed sections (Brazil) · 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 75x40x3.04 (UK / Australia)

The U 75x40x3.04 steel profile weighs 3.5 kg/m (2.33 lb/ft), has a depth of 75 mm (2.95 in), flange width 40 mm (1.57 in). Cross-sectional area: 440.8 mm². Moment of inertia Ix = 38.137 cm⁴, Iy = 6.948 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 3.04 mm ≈ 11 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	75 mm	2.95 in
Width (b)	40 mm	1.57 in
Thickness (t)	3.0 mm	0.12 in
Fillet radius (r)	3.0 mm	0.12 in
Weight	3.5 kg/m	2.33 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	440.8 mm²	0.683 in²
Moment of inertia (Ix)	38.14 cm⁴	0.92 in⁴
Moment of inertia (Iy)	6.95 cm⁴	0.17 in⁴
Elastic section modulus (Sx)	10.17 cm³	0.621 in³
Elastic section modulus (Sy)	2.46 cm³	0.150 in³
Plastic section modulus (Zx)	12.35 cm³	0.754 in³
Plastic section modulus (Zy)	3.26 cm³	0.199 in³
Radius of gyration (rx)	2.94 cm	1.158 in
Radius of gyration (ry)	1.26 cm	0.494 in