C 175x75x20x4.5 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 175x75x20x4.5 (UK / Australia)

The C 175x75x20x4.5 steel profile weighs 11.7 kg/m (7.86 lb/ft), has a depth of 175 mm (6.89 in), flange width 75 mm (2.95 in). Cross-sectional area: 1,509.275 mm². Moment of inertia Ix = 701.745 cm⁴, Iy = 104.329 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)	4.5 mm	0.18 in
Lip	20 mm	0.79 in
Weight	11.7 kg/m	7.86 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,509.28 mm²	2.339 in²
Moment of inertia (Ix)	701.75 cm⁴	16.86 in⁴
Moment of inertia (Iy)	104.33 cm⁴	2.51 in⁴
Elastic section modulus (Sx)	80.2 cm³	4.894 in³
Elastic section modulus (Sy)	20.18 cm³	1.232 in³
Plastic section modulus (Zx)	99 cm³	6.041 in³
Plastic section modulus (Zy)	29.53 cm³	1.802 in³
Radius of gyration (rx)	6.82 cm	2.685 in
Radius of gyration (ry)	2.63 cm	1.035 in