C 88.9x50.8x12.7x1.21 IMCA · Weight & Dimensions

IMCA, 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 ½ pulgadas (México) · PFC 88.9x50.8x12.7x1.21 (UK / Australia)

The C 88.9x50.8x12.7x1.21 steel profile weighs 1.9 kg/m (1.31 lb/ft), has a depth of 88.9 mm (3.50 in), flange width 50.8 mm (2.00 in). Cross-sectional area: 249.131 mm². Moment of inertia Ix = 32.859 cm⁴, Iy = 8.927 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	88.9 mm	3.50 in
Width (b)	50.8 mm	2.00 in
Thickness (t)	1.2 mm	0.05 in
Lip	12.7 mm	0.50 in
Fillet radius (r)	2.4 mm	0.09 in
Weight	1.9 kg/m	1.31 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	249.13 mm²	0.386 in²
Moment of inertia (Ix)	32.86 cm⁴	0.79 in⁴
Moment of inertia (Iy)	8.93 cm⁴	0.21 in⁴
Elastic section modulus (Sx)	7.39 cm³	0.451 in³
Elastic section modulus (Sy)	2.7 cm³	0.165 in³
Plastic section modulus (Zx)	8.69 cm³	0.531 in³
Plastic section modulus (Zy)	3.75 cm³	0.229 in³
Radius of gyration (rx)	3.63 cm	1.430 in
Radius of gyration (ry)	1.89 cm	0.745 in