C 100x75x20x2.5 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 4 pulgadas (México) · PFC 100x75x20x2.5 (UK / Australia)

The C 100x75x20x2.5 steel profile weighs 5.3 kg/m (3.58 lb/ft), has a depth of 100 mm (3.94 in), flange width 75 mm (2.95 in). Cross-sectional area: 683.881 mm². Moment of inertia Ix = 116.359 cm⁴, Iy = 53.731 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	100 mm	3.94 in
Width (b)	75 mm	2.95 in
Thickness (t)	2.5 mm	0.10 in
Lip	20 mm	0.79 in
Weight	5.3 kg/m	3.58 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	683.88 mm²	1.060 in²
Moment of inertia (Ix)	116.36 cm⁴	2.80 in⁴
Moment of inertia (Iy)	53.73 cm⁴	1.29 in⁴
Elastic section modulus (Sx)	23.27 cm³	1.420 in³
Elastic section modulus (Sy)	11.82 cm³	0.721 in³
Plastic section modulus (Zx)	27.3 cm³	1.666 in³
Plastic section modulus (Zy)	16.48 cm³	1.006 in³
Radius of gyration (rx)	4.12 cm	1.624 in
Radius of gyration (ry)	2.8 cm	1.104 in