C 300x75x20x5 Cintac · Weight & Dimensions

Cintac, 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 12 pulgadas (México) · PFC 300x75x20x5 (UK / Australia)

The C 300x75x20x5 steel profile weighs 18.0 kg/m (12.08 lb/ft), has a depth of 300 mm (11.81 in), flange width 75 mm (2.95 in). Cross-sectional area: 2,285.525 mm². Moment of inertia Ix = 2,787.46 cm⁴, Iy = 131.999 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	300 mm	11.81 in
Width (b)	75 mm	2.95 in
Thickness (t)	5 mm	0.20 in
Lip	20 mm	0.79 in
Fillet radius (r)	5 mm	0.20 in
Weight	18.0 kg/m	12.08 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,285.52 mm²	3.543 in²
Moment of inertia (Ix)	2,787.46 cm⁴	66.97 in⁴
Moment of inertia (Iy)	132 cm⁴	3.17 in⁴
Elastic section modulus (Sx)	185.83 cm³	11.340 in³
Elastic section modulus (Sy)	22.99 cm³	1.403 in³
Plastic section modulus (Zx)	236.31 cm³	14.421 in³
Plastic section modulus (Zy)	33.86 cm³	2.066 in³
Radius of gyration (rx)	11.04 cm	4.348 in
Radius of gyration (ry)	2.4 cm	0.946 in