C 175x75x20x3.5 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 175x75x20x3.5 (UK / Australia)

The C 175x75x20x3.5 steel profile weighs 9.3 kg/m (6.28 lb/ft), has a depth of 175 mm (6.89 in), flange width 75 mm (2.95 in). Cross-sectional area: 1,196.907 mm². Moment of inertia Ix = 566.85 cm⁴, Iy = 86.363 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)	3.5 mm	0.14 in
Lip	20 mm	0.79 in
Weight	9.3 kg/m	6.28 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,196.91 mm²	1.855 in²
Moment of inertia (Ix)	566.85 cm⁴	13.62 in⁴
Moment of inertia (Iy)	86.36 cm⁴	2.07 in⁴
Elastic section modulus (Sx)	64.78 cm³	3.953 in³
Elastic section modulus (Sy)	16.73 cm³	1.021 in³
Plastic section modulus (Zx)	78.44 cm³	4.787 in³
Plastic section modulus (Zy)	23.78 cm³	1.451 in³
Radius of gyration (rx)	6.88 cm	2.709 in
Radius of gyration (ry)	2.69 cm	1.058 in