C 100x50x20x3.2 IAS · Weight & Dimensions

IAS, 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 100x50x20x3.2 (UK / Australia)

The C 100x50x20x3.2 steel profile weighs 5.5 kg/m (3.70 lb/ft), has a depth of 100 mm (3.94 in), flange width 50 mm (1.97 in). Cross-sectional area: 700.631 mm². Moment of inertia Ix = 106.413 cm⁴, Iy = 24.485 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	100 mm	3.94 in
Width (b)	50 mm	1.97 in
Thickness (t)	3.2 mm	0.13 in
Lip	20 mm	0.79 in
Fillet radius (r)	3.2 mm	0.13 in
Weight	5.5 kg/m	3.70 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	700.63 mm²	1.086 in²
Moment of inertia (Ix)	106.41 cm⁴	2.56 in⁴
Moment of inertia (Iy)	24.49 cm⁴	0.59 in⁴
Elastic section modulus (Sx)	21.28 cm³	1.299 in³
Elastic section modulus (Sy)	7.79 cm³	0.476 in³
Plastic section modulus (Zx)	26.61 cm³	1.624 in³
Plastic section modulus (Zy)	11.4 cm³	0.696 in³
Radius of gyration (rx)	3.9 cm	1.534 in
Radius of gyration (ry)	1.87 cm	0.736 in