CHS 168.3x11.1 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 168.3x11.1 steel profile weighs 43.0 kg/m (28.92 lb/ft). Cross-sectional area: 5,481.828 mm². Moment of inertia Ix = 1,701.768 cm⁴, Iy = 1,701.768 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	11.1 mm	0.44 in
Diameter (d)	168.3 mm	6.63 in
Weight	43.0 kg/m	28.92 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	5,481.83 mm²	8.497 in²
Moment of inertia (Ix)	1,701.77 cm⁴	40.88 in⁴
Moment of inertia (Iy)	1,701.77 cm⁴	40.88 in⁴
Elastic section modulus (Sx)	202.23 cm³	12.341 in³
Elastic section modulus (Sy)	202.23 cm³	12.341 in³
Plastic section modulus (Zx)	274.76 cm³	16.767 in³
Plastic section modulus (Zy)	274.76 cm³	16.767 in³
Radius of gyration (rx)	5.57 cm	2.194 in
Radius of gyration (ry)	5.57 cm	2.194 in