C 101.6x50.8x12.7x1.21 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 4 pulgadas (México) · PFC 101.6x50.8x12.7x1.21 (UK / Australia)

The C 101.6x50.8x12.7x1.21 steel profile weighs 2.1 kg/m (1.40 lb/ft), has a depth of 101.6 mm (4.00 in), flange width 50.8 mm (2.00 in). Cross-sectional area: 264.498 mm². Moment of inertia Ix = 44.574 cm⁴, Iy = 9.353 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	101.6 mm	4.00 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	2.1 kg/m	1.40 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	264.5 mm²	0.410 in²
Moment of inertia (Ix)	44.57 cm⁴	1.07 in⁴
Moment of inertia (Iy)	9.35 cm⁴	0.22 in⁴
Elastic section modulus (Sx)	8.77 cm³	0.535 in³
Elastic section modulus (Sy)	2.75 cm³	0.168 in³
Plastic section modulus (Zx)	10.36 cm³	0.632 in³
Plastic section modulus (Zy)	3.81 cm³	0.232 in³
Radius of gyration (rx)	4.11 cm	1.616 in
Radius of gyration (ry)	1.88 cm	0.740 in