CHS 323.8x9.5 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 323.8x9.5 steel profile weighs 73.6 kg/m (49.49 lb/ft). Cross-sectional area: 9,380.324 mm². Moment of inertia Ix = 11,593.464 cm⁴, Iy = 11,593.464 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	9.5 mm	0.37 in
Diameter (d)	323.8 mm	12.75 in
Weight	73.6 kg/m	49.49 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	9,380.32 mm²	14.540 in²
Moment of inertia (Ix)	11,593.46 cm⁴	278.53 in⁴
Moment of inertia (Iy)	11,593.46 cm⁴	278.53 in⁴
Elastic section modulus (Sx)	716.09 cm³	43.699 in³
Elastic section modulus (Sy)	716.09 cm³	43.699 in³
Plastic section modulus (Zx)	938.74 cm³	57.286 in³
Plastic section modulus (Zy)	938.74 cm³	57.286 in³
Radius of gyration (rx)	11.12 cm	4.377 in
Radius of gyration (ry)	11.12 cm	4.377 in