CHS 101.6x6.4 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 101.6x6.4 steel profile weighs 15.0 kg/m (10.10 lb/ft). Cross-sectional area: 1,914.11 mm². Moment of inertia Ix = 217.826 cm⁴, Iy = 217.826 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 6.4 mm ≈ 3 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	6.4 mm	0.25 in
Diameter (d)	101.6 mm	4.00 in
Weight	15.0 kg/m	10.10 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,914.11 mm²	2.967 in²
Moment of inertia (Ix)	217.83 cm⁴	5.23 in⁴
Moment of inertia (Iy)	217.83 cm⁴	5.23 in⁴
Elastic section modulus (Sx)	42.88 cm³	2.617 in³
Elastic section modulus (Sy)	42.88 cm³	2.617 in³
Plastic section modulus (Zx)	58.09 cm³	3.545 in³
Plastic section modulus (Zy)	58.09 cm³	3.545 in³
Radius of gyration (rx)	3.37 cm	1.328 in
Radius of gyration (ry)	3.37 cm	1.328 in