CHS 101.6x4.8 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 101.6x4.8 steel profile weighs 11.5 kg/m (7.70 lb/ft). Cross-sectional area: 1,459.71 mm². Moment of inertia Ix = 171.393 cm⁴, Iy = 171.393 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 4.8 mm ≈ 7 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	4.8 mm	0.19 in
Diameter (d)	101.6 mm	4.00 in
Weight	11.5 kg/m	7.70 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,459.71 mm²	2.263 in²
Moment of inertia (Ix)	171.39 cm⁴	4.12 in⁴
Moment of inertia (Iy)	171.39 cm⁴	4.12 in⁴
Elastic section modulus (Sx)	33.74 cm³	2.059 in³
Elastic section modulus (Sy)	33.74 cm³	2.059 in³
Plastic section modulus (Zx)	45.01 cm³	2.747 in³
Plastic section modulus (Zy)	45.01 cm³	2.747 in³
Radius of gyration (rx)	3.43 cm	1.349 in
Radius of gyration (ry)	3.43 cm	1.349 in