CHS 46.3x5.1 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 46.3x5.1 steel profile weighs 5.2 kg/m (3.48 lb/ft). Cross-sectional area: 660.111 mm². Moment of inertia Ix = 14.221 cm⁴, Iy = 14.221 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 5.1 mm ≈ 6 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	5.1 mm	0.20 in
Diameter (d)	46.3 mm	1.82 in
Weight	5.2 kg/m	3.48 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	660.11 mm²	1.023 in²
Moment of inertia (Ix)	14.22 cm⁴	0.34 in⁴
Moment of inertia (Iy)	14.22 cm⁴	0.34 in⁴
Elastic section modulus (Sx)	6.14 cm³	0.375 in³
Elastic section modulus (Sy)	6.14 cm³	0.375 in³
Plastic section modulus (Zx)	8.7 cm³	0.531 in³
Plastic section modulus (Zy)	8.7 cm³	0.531 in³
Radius of gyration (rx)	1.47 cm	0.578 in
Radius of gyration (ry)	1.47 cm	0.578 in