CHS 219x20.6 AHMSA · Weight & Dimensions

AHMSA, 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 219x20.6 steel profile weighs 100.8 kg/m (67.73 lb/ft). Cross-sectional area: 12,839.815 mm². Moment of inertia Ix = 6,385.709 cm⁴, Iy = 6,385.709 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	20.6 mm	0.81 in
Diameter (d)	219 mm	8.62 in
Weight	100.8 kg/m	67.73 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	12,839.81 mm²	19.902 in²
Moment of inertia (Ix)	6,385.71 cm⁴	153.42 in⁴
Moment of inertia (Iy)	6,385.71 cm⁴	153.42 in⁴
Elastic section modulus (Sx)	583.17 cm³	35.587 in³
Elastic section modulus (Sy)	583.17 cm³	35.587 in³
Plastic section modulus (Zx)	813.78 cm³	49.660 in³
Plastic section modulus (Zy)	813.78 cm³	49.660 in³
Radius of gyration (rx)	7.05 cm	2.776 in
Radius of gyration (ry)	7.05 cm	2.776 in