CHS 323.8x28.6 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 323.8x28.6 steel profile weighs 208.2 kg/m (139.92 lb/ft). Cross-sectional area: 26,523.587 mm². Moment of inertia Ix = 29,163.016 cm⁴, Iy = 29,163.016 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	28.6 mm	1.13 in
Diameter (d)	323.8 mm	12.75 in
Weight	208.2 kg/m	139.92 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	26,523.59 mm²	41.112 in²
Moment of inertia (Ix)	29,163.02 cm⁴	700.64 in⁴
Moment of inertia (Iy)	29,163.02 cm⁴	700.64 in⁴
Elastic section modulus (Sx)	1,801.3 cm³	109.922 in³
Elastic section modulus (Sy)	1,801.3 cm³	109.922 in³
Plastic section modulus (Zx)	2,500.09 cm³	152.565 in³
Plastic section modulus (Zy)	2,500.09 cm³	152.565 in³
Radius of gyration (rx)	10.49 cm	4.128 in
Radius of gyration (ry)	10.49 cm	4.128 in