CHS 50.8x3 Cintac · Weight & Dimensions

Cintac, cold-formed sections · Circular Hollow Section

Circular Hollow Sections (CHS) are round tubular profiles with the most efficient cross-section for compression. Used for columns, trusses, and architectural structures.

Also known as: Caño estructural redondo (Argentina)

The CHS 50.8x3 steel profile weighs 3.5 kg/m (2.38 lb/ft). Cross-sectional area: 450.504 mm². Moment of inertia Ix = 12.917 cm⁴, Iy = 12.917 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 3 mm ≈ 11 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	3 mm	0.12 in
Diameter (d)	50.8 mm	2.00 in
Weight	3.5 kg/m	2.38 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	450.5 mm²	0.698 in²
Moment of inertia (Ix)	12.92 cm⁴	0.31 in⁴
Moment of inertia (Iy)	12.92 cm⁴	0.31 in⁴
Elastic section modulus (Sx)	5.09 cm³	0.310 in³
Elastic section modulus (Sy)	5.09 cm³	0.310 in³
Plastic section modulus (Zx)	6.86 cm³	0.419 in³
Plastic section modulus (Zy)	6.86 cm³	0.419 in³
Radius of gyration (rx)	1.69 cm	0.667 in
Radius of gyration (ry)	1.69 cm	0.667 in