CHS 168.3x15.9 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 168.3x15.9 steel profile weighs 59.8 kg/m (40.16 lb/ft). Cross-sectional area: 7,612.582 mm². Moment of inertia Ix = 2,234.157 cm⁴, Iy = 2,234.157 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	15.9 mm	0.63 in
Diameter (d)	168.3 mm	6.63 in
Weight	59.8 kg/m	40.16 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	7,612.58 mm²	11.800 in²
Moment of inertia (Ix)	2,234.16 cm⁴	53.68 in⁴
Moment of inertia (Iy)	2,234.16 cm⁴	53.68 in⁴
Elastic section modulus (Sx)	265.5 cm³	16.202 in³
Elastic section modulus (Sy)	265.5 cm³	16.202 in³
Plastic section modulus (Zx)	370.63 cm³	22.617 in³
Plastic section modulus (Zy)	370.63 cm³	22.617 in³
Radius of gyration (rx)	5.42 cm	2.133 in
Radius of gyration (ry)	5.42 cm	2.133 in