C 177.8x69.9x17.8x1.9 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 7 pulgadas (México) · PFC 177.8x69.9x17.8x1.9 (UK / Australia)

The C 177.8x69.9x17.8x1.9 steel profile weighs 5.1 kg/m (3.41 lb/ft), has a depth of 177.8 mm (7.00 in), flange width 69.9 mm (2.75 in). Cross-sectional area: 645.696 mm². Moment of inertia Ix = 318.131 cm⁴, Iy = 41.63 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	177.8 mm	7.00 in
Width (b)	69.9 mm	2.75 in
Thickness (t)	1.9 mm	0.07 in
Lip	17.8 mm	0.70 in
Fillet radius (r)	2.4 mm	0.09 in
Weight	5.1 kg/m	3.41 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	645.7 mm²	1.001 in²
Moment of inertia (Ix)	318.13 cm⁴	7.64 in⁴
Moment of inertia (Iy)	41.63 cm⁴	1.00 in⁴
Elastic section modulus (Sx)	35.79 cm³	2.184 in³
Elastic section modulus (Sy)	8.47 cm³	0.517 in³
Plastic section modulus (Zx)	42.52 cm³	2.594 in³
Plastic section modulus (Zy)	11.63 cm³	0.710 in³
Radius of gyration (rx)	7.02 cm	2.763 in
Radius of gyration (ry)	2.54 cm	1.000 in