C 170x70x28x3 Arval · Weight & Dimensions

Arval, cold-formed sections · Cold-formed Lipped Channel

Cold-formed lipped channels (C shapes) are lightweight profiles commonly used as purlins, girts, and light framing members. The stiffening lips increase local buckling resistance. Designed per AISI S100 and NBR 14762.

Also known as: Montén de 7 pulgadas (México) · PFC 170x70x28x3 (UK / Australia)

The C 170x70x28x3 steel profile weighs 8.1 kg/m (5.45 lb/ft), has a depth of 170 mm (6.69 in), flange width 70 mm (2.76 in). Cross-sectional area: 1,033.631 mm². Moment of inertia Ix = 455.937 cm⁴, Iy = 73.099 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	170 mm	6.69 in
Width (b)	70 mm	2.76 in
Thickness (t)	3 mm	0.12 in
Lip	28 mm	1.10 in
Fillet radius (r)	4 mm	0.16 in
Weight	8.1 kg/m	5.45 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,033.63 mm²	1.602 in²
Moment of inertia (Ix)	455.94 cm⁴	10.95 in⁴
Moment of inertia (Iy)	73.1 cm⁴	1.76 in⁴
Elastic section modulus (Sx)	53.64 cm³	3.273 in³
Elastic section modulus (Sy)	15.86 cm³	0.968 in³
Plastic section modulus (Zx)	65.65 cm³	4.006 in³
Plastic section modulus (Zy)	22.4 cm³	1.367 in³
Radius of gyration (rx)	6.64 cm	2.615 in
Radius of gyration (ry)	2.66 cm	1.047 in