CHS 323.9x16 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 323.9x16 steel profile weighs 121.5 kg/m (81.64 lb/ft). Cross-sectional area: 15,476.742 mm². Moment of inertia Ix = 18,389.931 cm⁴, Iy = 18,389.931 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	16 mm	0.63 in
Diameter (d)	323.9 mm	12.75 in
Weight	121.5 kg/m	81.64 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	15,476.74 mm²	23.989 in²
Moment of inertia (Ix)	18,389.93 cm⁴	441.82 in⁴
Moment of inertia (Iy)	18,389.93 cm⁴	441.82 in⁴
Elastic section modulus (Sx)	1,135.53 cm³	69.295 in³
Elastic section modulus (Sy)	1,135.53 cm³	69.295 in³
Plastic section modulus (Zx)	1,518.2 cm³	92.647 in³
Plastic section modulus (Zy)	1,518.2 cm³	92.647 in³
Radius of gyration (rx)	10.9 cm	4.292 in
Radius of gyration (ry)	10.9 cm	4.292 in