C 400x75x21x4 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 16 pulgadas (México) · PFC 400x75x21x4 (UK / Australia)

The C 400x75x21x4 steel profile weighs 17.9 kg/m (12.04 lb/ft), has a depth of 400 mm (15.75 in), flange width 75 mm (2.95 in). Cross-sectional area: 2,262.736 mm². Moment of inertia Ix = 4,673.977 cm⁴, Iy = 123.163 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	400 mm	15.75 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	17.9 kg/m	12.04 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,262.74 mm²	3.507 in²
Moment of inertia (Ix)	4,673.98 cm⁴	112.29 in⁴
Moment of inertia (Iy)	123.16 cm⁴	2.96 in⁴
Elastic section modulus (Sx)	233.7 cm³	14.261 in³
Elastic section modulus (Sy)	20.54 cm³	1.253 in³
Plastic section modulus (Zx)	297.93 cm³	18.181 in³
Plastic section modulus (Zy)	29.32 cm³	1.789 in³
Radius of gyration (rx)	14.37 cm	5.658 in
Radius of gyration (ry)	2.33 cm	0.919 in