C 177.8x69.9x20.3x2.66 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 177.8x69.9x20.3x2.66 (UK / Australia)

The C 177.8x69.9x20.3x2.66 steel profile weighs 7.0 kg/m (4.72 lb/ft), has a depth of 177.8 mm (7.00 in), flange width 69.9 mm (2.75 in). Cross-sectional area: 896.474 mm². Moment of inertia Ix = 433.261 cm⁴, Iy = 57.424 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)	2.7 mm	0.10 in
Lip	20.3 mm	0.80 in
Fillet radius (r)	4.8 mm	0.19 in
Weight	7.0 kg/m	4.72 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	896.47 mm²	1.390 in²
Moment of inertia (Ix)	433.26 cm⁴	10.41 in⁴
Moment of inertia (Iy)	57.42 cm⁴	1.38 in⁴
Elastic section modulus (Sx)	48.74 cm³	2.974 in³
Elastic section modulus (Sy)	11.81 cm³	0.720 in³
Plastic section modulus (Zx)	59.6 cm³	3.637 in³
Plastic section modulus (Zy)	16.85 cm³	1.028 in³
Radius of gyration (rx)	6.95 cm	2.737 in
Radius of gyration (ry)	2.53 cm	0.996 in