CHS 219.1x19.1 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 219.1x19.1 steel profile weighs 94.2 kg/m (63.31 lb/ft). Cross-sectional area: 12,000.884 mm². Moment of inertia Ix = 6,055.167 cm⁴, Iy = 6,055.167 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	19.1 mm	0.75 in
Diameter (d)	219.1 mm	8.63 in
Weight	94.2 kg/m	63.31 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	12,000.88 mm²	18.601 in²
Moment of inertia (Ix)	6,055.17 cm⁴	145.48 in⁴
Moment of inertia (Iy)	6,055.17 cm⁴	145.48 in⁴
Elastic section modulus (Sx)	552.73 cm³	33.730 in³
Elastic section modulus (Sy)	552.73 cm³	33.730 in³
Plastic section modulus (Zx)	766.32 cm³	46.764 in³
Plastic section modulus (Zy)	766.32 cm³	46.764 in³
Radius of gyration (rx)	7.1 cm	2.797 in
Radius of gyration (ry)	7.1 cm	2.797 in