C 300x75x20x3 SAISC · Weight & Dimensions

SAISC, 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 300x75x20x3 (UK / Australia)

The C 300x75x20x3 steel profile weighs 11.0 kg/m (7.39 lb/ft), has a depth of 300 mm (11.81 in), flange width 75 mm (2.95 in). Cross-sectional area: 1,410.789 mm². Moment of inertia Ix = 1,771.491 cm⁴, Iy = 89.572 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)	3 mm	0.12 in
Lip	20 mm	0.79 in
Weight	11.0 kg/m	7.39 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,410.79 mm²	2.187 in²
Moment of inertia (Ix)	1,771.49 cm⁴	42.56 in⁴
Moment of inertia (Iy)	89.57 cm⁴	2.15 in⁴
Elastic section modulus (Sx)	118.1 cm³	7.207 in³
Elastic section modulus (Sy)	15.6 cm³	0.952 in³
Plastic section modulus (Zx)	145.77 cm³	8.895 in³
Plastic section modulus (Zy)	21.77 cm³	1.329 in³
Radius of gyration (rx)	11.21 cm	4.412 in
Radius of gyration (ry)	2.52 cm	0.992 in