C 180x70x25x4.75 IAS · Weight & Dimensions

IAS, 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.

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Also known as: Montén de 7 pulgadas (México) · PFC 180x70x25x4.75 (UK / Australia)

The C 180x70x25x4.75 steel profile weighs 12.6 kg/m (8.49 lb/ft), has a depth of 180 mm (7.09 in), flange width 70 mm (2.76 in). Cross-sectional area: 1,609.061 mm². Moment of inertia Ix = 769.311 cm⁴, Iy = 101.796 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	180 mm	7.09 in
Width (b)	70 mm	2.76 in
Thickness (t)	4.8 mm	0.19 in
Lip	25 mm	0.98 in
Fillet radius (r)	4.8 mm	0.19 in
Weight	12.6 kg/m	8.49 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,609.06 mm²	2.494 in²
Moment of inertia (Ix)	769.31 cm⁴	18.48 in⁴
Moment of inertia (Iy)	101.8 cm⁴	2.45 in⁴
Elastic section modulus (Sx)	85.48 cm³	5.216 in³
Elastic section modulus (Sy)	21.42 cm³	1.307 in³
Plastic section modulus (Zx)	107.19 cm³	6.541 in³
Plastic section modulus (Zy)	31.49 cm³	1.922 in³
Radius of gyration (rx)	6.91 cm	2.722 in
Radius of gyration (ry)	2.52 cm	0.990 in