C 300x75x21x4 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 12 pulgadas (México) · PFC 300x75x21x4 (UK / Australia)

The C 300x75x21x4 steel profile weighs 14.8 kg/m (9.95 lb/ft), has a depth of 300 mm (11.81 in), flange width 75 mm (2.95 in). Cross-sectional area: 1,862.736 mm². Moment of inertia Ix = 2,309.122 cm⁴, Iy = 114.856 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	300 mm	11.81 in
Width (b)	75 mm	2.95 in
Thickness (t)	4 mm	0.16 in
Lip	21 mm	0.83 in
Fillet radius (r)	4 mm	0.16 in
Weight	14.8 kg/m	9.95 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,862.74 mm²	2.887 in²
Moment of inertia (Ix)	2,309.12 cm⁴	55.48 in⁴
Moment of inertia (Iy)	114.86 cm⁴	2.76 in⁴
Elastic section modulus (Sx)	153.94 cm³	9.394 in³
Elastic section modulus (Sy)	20.09 cm³	1.226 in³
Plastic section modulus (Zx)	192.73 cm³	11.761 in³
Plastic section modulus (Zy)	28.74 cm³	1.754 in³
Radius of gyration (rx)	11.13 cm	4.383 in
Radius of gyration (ry)	2.48 cm	0.978 in