C 300x75x20x3.5 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 300x75x20x3.5 (UK / Australia)

The C 300x75x20x3.5 steel profile weighs 12.7 kg/m (8.55 lb/ft), has a depth of 300 mm (11.81 in), flange width 75 mm (2.95 in). Cross-sectional area: 1,634.407 mm². Moment of inertia Ix = 2,037.681 cm⁴, Iy = 101.407 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)	3.5 mm	0.14 in
Lip	20 mm	0.79 in
Weight	12.7 kg/m	8.55 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,634.41 mm²	2.533 in²
Moment of inertia (Ix)	2,037.68 cm⁴	48.96 in⁴
Moment of inertia (Iy)	101.41 cm⁴	2.44 in⁴
Elastic section modulus (Sx)	135.85 cm³	8.290 in³
Elastic section modulus (Sy)	17.67 cm³	1.078 in³
Plastic section modulus (Zx)	168.9 cm³	10.307 in³
Plastic section modulus (Zy)	24.97 cm³	1.524 in³
Radius of gyration (rx)	11.17 cm	4.396 in
Radius of gyration (ry)	2.49 cm	0.981 in