CHS 168.3x9.5 Açotubo · Weight & Dimensions

Açotubo, 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 168.3x9.5 steel profile weighs 37.2 kg/m (25.00 lb/ft). Cross-sectional area: 4,739.407 mm². Moment of inertia Ix = 1,499.293 cm⁴, Iy = 1,499.293 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	9.5 mm	0.37 in
Diameter (d)	168.3 mm	6.63 in
Weight	37.2 kg/m	25.00 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	4,739.41 mm²	7.346 in²
Moment of inertia (Ix)	1,499.29 cm⁴	36.02 in⁴
Moment of inertia (Iy)	1,499.29 cm⁴	36.02 in⁴
Elastic section modulus (Sx)	178.17 cm³	10.873 in³
Elastic section modulus (Sy)	178.17 cm³	10.873 in³
Plastic section modulus (Zx)	239.85 cm³	14.637 in³
Plastic section modulus (Zy)	239.85 cm³	14.637 in³
Radius of gyration (rx)	5.62 cm	2.214 in
Radius of gyration (ry)	5.62 cm	2.214 in