CHS 36.1x5 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 36.1x5 steel profile weighs 3.8 kg/m (2.57 lb/ft). Cross-sectional area: 488.518 mm². Moment of inertia Ix = 6.059 cm⁴, Iy = 6.059 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 5 mm ≈ 6 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	5 mm	0.20 in
Diameter (d)	36.1 mm	1.42 in
Weight	3.8 kg/m	2.57 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	488.52 mm²	0.757 in²
Moment of inertia (Ix)	6.06 cm⁴	0.15 in⁴
Moment of inertia (Iy)	6.06 cm⁴	0.15 in⁴
Elastic section modulus (Sx)	3.36 cm³	0.205 in³
Elastic section modulus (Sy)	3.36 cm³	0.205 in³
Plastic section modulus (Zx)	4.88 cm³	0.298 in³
Plastic section modulus (Zy)	4.88 cm³	0.298 in³
Radius of gyration (rx)	1.11 cm	0.438 in
Radius of gyration (ry)	1.11 cm	0.438 in