C 175x75x20x2.5 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 7 pulgadas (México) · PFC 175x75x20x2.5 (UK / Australia)

The C 175x75x20x2.5 steel profile weighs 6.8 kg/m (4.57 lb/ft), has a depth of 175 mm (6.89 in), flange width 75 mm (2.95 in). Cross-sectional area: 871.381 mm². Moment of inertia Ix = 420.135 cm⁴, Iy = 65.525 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	175 mm	6.89 in
Width (b)	75 mm	2.95 in
Thickness (t)	2.5 mm	0.10 in
Lip	20 mm	0.79 in
Weight	6.8 kg/m	4.57 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	871.38 mm²	1.351 in²
Moment of inertia (Ix)	420.14 cm⁴	10.09 in⁴
Moment of inertia (Iy)	65.52 cm⁴	1.57 in⁴
Elastic section modulus (Sx)	48.02 cm³	2.930 in³
Elastic section modulus (Sy)	12.71 cm³	0.776 in³
Plastic section modulus (Zx)	57.07 cm³	3.483 in³
Plastic section modulus (Zy)	17.59 cm³	1.073 in³
Radius of gyration (rx)	6.94 cm	2.734 in
Radius of gyration (ry)	2.74 cm	1.080 in