CHS 323.9x20 Iberian tables · Weight & Dimensions

Iberian tables, 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 323.9x20 steel profile weighs 149.9 kg/m (100.73 lb/ft). Cross-sectional area: 19,094.6 mm². Moment of inertia Ix = 22,139.046 cm⁴, Iy = 22,139.046 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	20 mm	0.79 in
Diameter (d)	323.9 mm	12.75 in
Weight	149.9 kg/m	100.73 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	19,094.6 mm²	29.597 in²
Moment of inertia (Ix)	22,139.05 cm⁴	531.89 in⁴
Moment of inertia (Iy)	22,139.05 cm⁴	531.89 in⁴
Elastic section modulus (Sx)	1,367.03 cm³	83.422 in³
Elastic section modulus (Sy)	1,367.03 cm³	83.422 in³
Plastic section modulus (Zx)	1,849.77 cm³	112.880 in³
Plastic section modulus (Zy)	1,849.77 cm³	112.880 in³
Radius of gyration (rx)	10.77 cm	4.239 in
Radius of gyration (ry)	10.77 cm	4.239 in