CHS 273x20.6 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 273x20.6 steel profile weighs 128.2 kg/m (86.17 lb/ft). Cross-sectional area: 16,334.523 mm². Moment of inertia Ix = 13,094.186 cm⁴, Iy = 13,094.186 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	20.6 mm	0.81 in
Diameter (d)	273 mm	10.75 in
Weight	128.2 kg/m	86.17 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	16,334.52 mm²	25.319 in²
Moment of inertia (Ix)	13,094.19 cm⁴	314.59 in⁴
Moment of inertia (Iy)	13,094.19 cm⁴	314.59 in⁴
Elastic section modulus (Sx)	959.28 cm³	58.539 in³
Elastic section modulus (Sy)	959.28 cm³	58.539 in³
Plastic section modulus (Zx)	1,315.25 cm³	80.262 in³
Plastic section modulus (Zy)	1,315.25 cm³	80.262 in³
Radius of gyration (rx)	8.95 cm	3.525 in
Radius of gyration (ry)	8.95 cm	3.525 in