C 275x75x20x3.5 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 11 pulgadas (México) · PFC 275x75x20x3.5 (UK / Australia)

The C 275x75x20x3.5 steel profile weighs 12.1 kg/m (8.12 lb/ft), has a depth of 275 mm (10.83 in), flange width 75 mm (2.95 in). Cross-sectional area: 1,546.907 mm². Moment of inertia Ix = 1,652.302 cm⁴, Iy = 99.077 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	275 mm	10.83 in
Width (b)	75 mm	2.95 in
Thickness (t)	3.5 mm	0.14 in
Lip	20 mm	0.79 in
Weight	12.1 kg/m	8.12 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,546.91 mm²	2.398 in²
Moment of inertia (Ix)	1,652.3 cm⁴	39.70 in⁴
Moment of inertia (Iy)	99.08 cm⁴	2.38 in⁴
Elastic section modulus (Sx)	120.17 cm³	7.333 in³
Elastic section modulus (Sy)	17.53 cm³	1.070 in³
Plastic section modulus (Zx)	148.62 cm³	9.069 in³
Plastic section modulus (Zy)	24.8 cm³	1.513 in³
Radius of gyration (rx)	10.34 cm	4.069 in
Radius of gyration (ry)	2.53 cm	0.996 in