C 300x75x21x2.5 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 12 pulgadas (México) · PFC 300x75x21x2.5 (UK / Australia)

The C 300x75x21x2.5 steel profile weighs 9.3 kg/m (6.26 lb/ft), has a depth of 300 mm (11.81 in), flange width 75 mm (2.95 in). Cross-sectional area: 1,188.881 mm². Moment of inertia Ix = 1,505.469 cm⁴, Iy = 78.457 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)	2.5 mm	0.10 in
Lip	21 mm	0.83 in
Fillet radius (r)	2.5 mm	0.10 in
Weight	9.3 kg/m	6.26 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,188.88 mm²	1.843 in²
Moment of inertia (Ix)	1,505.47 cm⁴	36.17 in⁴
Moment of inertia (Iy)	78.46 cm⁴	1.88 in⁴
Elastic section modulus (Sx)	100.36 cm³	6.125 in³
Elastic section modulus (Sy)	13.72 cm³	0.838 in³
Plastic section modulus (Zx)	122.95 cm³	7.503 in³
Plastic section modulus (Zy)	18.89 cm³	1.153 in³
Radius of gyration (rx)	11.25 cm	4.430 in
Radius of gyration (ry)	2.57 cm	1.011 in