CHS 323.8x11.1 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 323.8x11.1 steel profile weighs 85.6 kg/m (57.52 lb/ft). Cross-sectional area: 10,904.374 mm². Moment of inertia Ix = 13,344.841 cm⁴, Iy = 13,344.841 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	11.1 mm	0.44 in
Diameter (d)	323.8 mm	12.75 in
Weight	85.6 kg/m	57.52 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	10,904.37 mm²	16.902 in²
Moment of inertia (Ix)	13,344.84 cm⁴	320.61 in⁴
Moment of inertia (Iy)	13,344.84 cm⁴	320.61 in⁴
Elastic section modulus (Sx)	824.26 cm³	50.300 in³
Elastic section modulus (Sy)	824.26 cm³	50.300 in³
Plastic section modulus (Zx)	1,085.83 cm³	66.262 in³
Plastic section modulus (Zy)	1,085.83 cm³	66.262 in³
Radius of gyration (rx)	11.06 cm	4.355 in
Radius of gyration (ry)	11.06 cm	4.355 in