C 170x50x20x2.5 Mundi · Weight & Dimensions

Mundi, 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 170x50x20x2.5 (UK / Australia)

The C 170x50x20x2.5 steel profile weighs 5.7 kg/m (3.82 lb/ft), has a depth of 170 mm (6.69 in), flange width 50 mm (1.97 in). Cross-sectional area: 723.135 mm². Moment of inertia Ix = 297.327 cm⁴, Iy = 23.516 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	170 mm	6.69 in
Width (b)	50 mm	1.97 in
Thickness (t)	2.5 mm	0.10 in
Lip	20 mm	0.79 in
Fillet radius (r)	5 mm	0.20 in
Weight	5.7 kg/m	3.82 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	723.14 mm²	1.121 in²
Moment of inertia (Ix)	297.33 cm⁴	7.14 in⁴
Moment of inertia (Iy)	23.52 cm⁴	0.56 in⁴
Elastic section modulus (Sx)	34.98 cm³	2.135 in³
Elastic section modulus (Sy)	6.59 cm³	0.402 in³
Plastic section modulus (Zx)	44.4 cm³	2.709 in³
Plastic section modulus (Zy)	9.62 cm³	0.587 in³
Radius of gyration (rx)	6.41 cm	2.524 in
Radius of gyration (ry)	1.8 cm	0.710 in