C 400x75x21x3 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 400x75x21x3 (UK / Australia)

The C 400x75x21x3 steel profile weighs 13.5 kg/m (9.06 lb/ft), has a depth of 400 mm (15.75 in), flange width 75 mm (2.95 in). Cross-sectional area: 1,716.789 mm². Moment of inertia Ix = 3,591.534 cm⁴, Iy = 98.067 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)	3 mm	0.12 in
Lip	21 mm	0.83 in
Fillet radius (r)	3 mm	0.12 in
Weight	13.5 kg/m	9.06 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,716.79 mm²	2.661 in²
Moment of inertia (Ix)	3,591.53 cm⁴	86.29 in⁴
Moment of inertia (Iy)	98.07 cm⁴	2.36 in⁴
Elastic section modulus (Sx)	179.58 cm³	10.958 in³
Elastic section modulus (Sy)	16.34 cm³	0.997 in³
Plastic section modulus (Zx)	226.04 cm³	13.794 in³
Plastic section modulus (Zy)	22.74 cm³	1.388 in³
Radius of gyration (rx)	14.46 cm	5.694 in
Radius of gyration (ry)	2.39 cm	0.941 in