C 120x55x20x1.5 Dabarca · Weight & Dimensions

Dabarca, 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 5 pulgadas (México) · PFC 120x55x20x1.5 (UK / Australia)

The C 120x55x20x1.5 steel profile weighs 3.1 kg/m (2.06 lb/ft), has a depth of 120 mm (4.72 in), flange width 55 mm (2.17 in). Cross-sectional area: 390.197 mm². Moment of inertia Ix = 89.485 cm⁴, Iy = 17.617 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	120 mm	4.72 in
Width (b)	55 mm	2.17 in
Thickness (t)	1.5 mm	0.06 in
Lip	20 mm	0.79 in
Fillet radius (r)	1.5 mm	0.06 in
Weight	3.1 kg/m	2.06 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	390.2 mm²	0.605 in²
Moment of inertia (Ix)	89.48 cm⁴	2.15 in⁴
Moment of inertia (Iy)	17.62 cm⁴	0.42 in⁴
Elastic section modulus (Sx)	14.91 cm³	0.910 in³
Elastic section modulus (Sy)	4.93 cm³	0.301 in³
Plastic section modulus (Zx)	17.64 cm³	1.077 in³
Plastic section modulus (Zy)	6.72 cm³	0.410 in³
Radius of gyration (rx)	4.79 cm	1.885 in
Radius of gyration (ry)	2.12 cm	0.837 in