CHS 26.9x2.3 · Weight & Dimensions

EN — 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 26.9x2.3 steel profile weighs 1.4 kg/m (0.93 lb/ft). Cross-sectional area: 177.8 mm². Moment of inertia Ix = 1.36 cm⁴, Iy = 1.36 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 2.3 mm ≈ 13 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	2.3 mm	0.09 in
Diameter (d)	26.9 mm	1.06 in
Weight	1.4 kg/m	0.93 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	177.8 mm²	0.276 in²
Moment of inertia (Ix)	1.36 cm⁴	0.03 in⁴
Moment of inertia (Iy)	1.36 cm⁴	0.03 in⁴
Elastic section modulus (Sx)	1.01 cm³	0.062 in³
Elastic section modulus (Sy)	1.01 cm³	0.062 in³
Plastic section modulus (Zx)	1.4 cm³	0.085 in³
Plastic section modulus (Zy)	1.4 cm³	0.085 in³
Radius of gyration (rx)	0.87 cm	0.343 in
Radius of gyration (ry)	0.87 cm	0.343 in