C 75x50x20x2 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 3 pulgadas (México) · PFC 75x50x20x2 (UK / Australia)

The C 75x50x20x2 steel profile weighs 3.1 kg/m (2.11 lb/ft), has a depth of 75 mm (2.95 in), flange width 50 mm (1.97 in). Cross-sectional area: 403.684 mm². Moment of inertia Ix = 36.426 cm⁴, Iy = 15.163 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	75 mm	2.95 in
Width (b)	50 mm	1.97 in
Thickness (t)	2 mm	0.08 in
Lip	20 mm	0.79 in
Weight	3.1 kg/m	2.11 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	403.68 mm²	0.626 in²
Moment of inertia (Ix)	36.43 cm⁴	0.88 in⁴
Moment of inertia (Iy)	15.16 cm⁴	0.36 in⁴
Elastic section modulus (Sx)	9.71 cm³	0.593 in³
Elastic section modulus (Sy)	5.2 cm³	0.317 in³
Plastic section modulus (Zx)	11.72 cm³	0.715 in³
Plastic section modulus (Zy)	7.29 cm³	0.445 in³
Radius of gyration (rx)	3 cm	1.183 in
Radius of gyration (ry)	1.94 cm	0.763 in