C 300x75x21x3 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 300x75x21x3 (UK / Australia)

The C 300x75x21x3 steel profile weighs 11.2 kg/m (7.49 lb/ft), has a depth of 300 mm (11.81 in), flange width 75 mm (2.95 in). Cross-sectional area: 1,416.789 mm². Moment of inertia Ix = 1,781.553 cm⁴, Iy = 91.44 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)	3 mm	0.12 in
Lip	21 mm	0.83 in
Fillet radius (r)	3 mm	0.12 in
Weight	11.2 kg/m	7.49 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,416.79 mm²	2.196 in²
Moment of inertia (Ix)	1,781.55 cm⁴	42.80 in⁴
Moment of inertia (Iy)	91.44 cm⁴	2.20 in⁴
Elastic section modulus (Sx)	118.77 cm³	7.248 in³
Elastic section modulus (Sy)	16 cm³	0.976 in³
Plastic section modulus (Zx)	146.54 cm³	8.943 in³
Plastic section modulus (Zy)	22.3 cm³	1.361 in³
Radius of gyration (rx)	11.21 cm	4.415 in
Radius of gyration (ry)	2.54 cm	1.000 in