CHS 323.8x8.7 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 323.8x8.7 steel profile weighs 67.6 kg/m (45.43 lb/ft). Cross-sectional area: 8,612.268 mm². Moment of inertia Ix = 10,696.835 cm⁴, Iy = 10,696.835 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	8.7 mm	0.34 in
Diameter (d)	323.8 mm	12.75 in
Weight	67.6 kg/m	45.43 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	8,612.27 mm²	13.349 in²
Moment of inertia (Ix)	10,696.83 cm⁴	256.99 in⁴
Moment of inertia (Iy)	10,696.83 cm⁴	256.99 in⁴
Elastic section modulus (Sx)	660.71 cm³	40.319 in³
Elastic section modulus (Sy)	660.71 cm³	40.319 in³
Plastic section modulus (Zx)	864.03 cm³	52.726 in³
Plastic section modulus (Zy)	864.03 cm³	52.726 in³
Radius of gyration (rx)	11.14 cm	4.388 in
Radius of gyration (ry)	11.14 cm	4.388 in