C 100x50x21x2.5 Brausa · Weight & Dimensions

Brausa, 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 100x50x21x2.5 (UK / Australia)

The C 100x50x21x2.5 steel profile weighs 4.5 kg/m (3.01 lb/ft), has a depth of 100 mm (3.94 in), flange width 50 mm (1.97 in). Cross-sectional area: 563.881 mm². Moment of inertia Ix = 87.081 cm⁴, Iy = 20.742 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	100 mm	3.94 in
Width (b)	50 mm	1.97 in
Thickness (t)	2.5 mm	0.10 in
Lip	21 mm	0.83 in
Fillet radius (r)	2.5 mm	0.10 in
Weight	4.5 kg/m	3.01 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	563.88 mm²	0.874 in²
Moment of inertia (Ix)	87.08 cm⁴	2.09 in⁴
Moment of inertia (Iy)	20.74 cm⁴	0.50 in⁴
Elastic section modulus (Sx)	17.42 cm³	1.063 in³
Elastic section modulus (Sy)	6.67 cm³	0.407 in³
Plastic section modulus (Zx)	21.36 cm³	1.303 in³
Plastic section modulus (Zy)	9.47 cm³	0.578 in³
Radius of gyration (rx)	3.93 cm	1.547 in
Radius of gyration (ry)	1.92 cm	0.755 in