C 100x50x20x1.6 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 100x50x20x1.6 (UK / Australia)

The C 100x50x20x1.6 steel profile weighs 2.9 kg/m (1.94 lb/ft), has a depth of 100 mm (3.94 in), flange width 50 mm (1.97 in). Cross-sectional area: 367.158 mm². Moment of inertia Ix = 58.397 cm⁴, Iy = 13.977 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)	1.6 mm	0.06 in
Lip	20 mm	0.79 in
Fillet radius (r)	1.6 mm	0.06 in
Weight	2.9 kg/m	1.94 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	367.16 mm²	0.569 in²
Moment of inertia (Ix)	58.4 cm⁴	1.40 in⁴
Moment of inertia (Iy)	13.98 cm⁴	0.34 in⁴
Elastic section modulus (Sx)	11.68 cm³	0.713 in³
Elastic section modulus (Sy)	4.46 cm³	0.272 in³
Plastic section modulus (Zx)	13.93 cm³	0.850 in³
Plastic section modulus (Zy)	6.13 cm³	0.374 in³
Radius of gyration (rx)	3.99 cm	1.570 in
Radius of gyration (ry)	1.95 cm	0.768 in