C 75x50x20x2.5 SAISC · Weight & Dimensions

SAISC, 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 3 pulgadas (México) · PFC 75x50x20x2.5 (UK / Australia)

The C 75x50x20x2.5 steel profile weighs 3.9 kg/m (2.59 lb/ft), has a depth of 75 mm (2.95 in), flange width 50 mm (1.97 in). Cross-sectional area: 496.381 mm². Moment of inertia Ix = 44.015 cm⁴, Iy = 18.164 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	75 mm	2.95 in
Width (b)	50 mm	1.97 in
Thickness (t)	2.5 mm	0.10 in
Lip	20 mm	0.79 in
Weight	3.9 kg/m	2.59 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	496.38 mm²	0.769 in²
Moment of inertia (Ix)	44.01 cm⁴	1.06 in⁴
Moment of inertia (Iy)	18.16 cm⁴	0.44 in⁴
Elastic section modulus (Sx)	11.74 cm³	0.716 in³
Elastic section modulus (Sy)	6.22 cm³	0.380 in³
Plastic section modulus (Zx)	14.41 cm³	0.880 in³
Plastic section modulus (Zy)	8.91 cm³	0.544 in³
Radius of gyration (rx)	2.98 cm	1.172 in
Radius of gyration (ry)	1.91 cm	0.753 in