C 100x75x20x3 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 4 pulgadas (México) · PFC 100x75x20x3 (UK / Australia)

The C 100x75x20x3 steel profile weighs 6.3 kg/m (4.23 lb/ft), has a depth of 100 mm (3.94 in), flange width 75 mm (2.95 in). Cross-sectional area: 810.789 mm². Moment of inertia Ix = 136.254 cm⁴, Iy = 62.478 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	100 mm	3.94 in
Width (b)	75 mm	2.95 in
Thickness (t)	3 mm	0.12 in
Lip	20 mm	0.79 in
Weight	6.3 kg/m	4.23 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	810.79 mm²	1.257 in²
Moment of inertia (Ix)	136.25 cm⁴	3.27 in⁴
Moment of inertia (Iy)	62.48 cm⁴	1.50 in⁴
Elastic section modulus (Sx)	27.25 cm³	1.663 in³
Elastic section modulus (Sy)	13.73 cm³	0.838 in³
Plastic section modulus (Zx)	32.37 cm³	1.975 in³
Plastic section modulus (Zy)	19.43 cm³	1.186 in³
Radius of gyration (rx)	4.1 cm	1.614 in
Radius of gyration (ry)	2.78 cm	1.093 in