C 300x100x20x5 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 300x100x20x5 (UK / Australia)

The C 300x100x20x5 steel profile weighs 19.9 kg/m (13.40 lb/ft), has a depth of 300 mm (11.81 in), flange width 100 mm (3.94 in). Cross-sectional area: 2,535.525 mm². Moment of inertia Ix = 3,331.419 cm⁴, Iy = 278.366 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	300 mm	11.81 in
Width (b)	100 mm	3.94 in
Thickness (t)	5 mm	0.20 in
Lip	20 mm	0.79 in
Fillet radius (r)	5 mm	0.20 in
Weight	19.9 kg/m	13.40 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,535.52 mm²	3.930 in²
Moment of inertia (Ix)	3,331.42 cm⁴	80.04 in⁴
Moment of inertia (Iy)	278.37 cm⁴	6.69 in⁴
Elastic section modulus (Sx)	222.09 cm³	13.553 in³
Elastic section modulus (Sy)	37.44 cm³	2.285 in³
Plastic section modulus (Zx)	273.19 cm³	16.671 in³
Plastic section modulus (Zy)	53.83 cm³	3.285 in³
Radius of gyration (rx)	11.46 cm	4.513 in
Radius of gyration (ry)	3.31 cm	1.304 in