CHS 15.9x0.9 Cimagbo · Weight & Dimensions

Cimagbo, 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 15.9x0.9 steel profile weighs 0.3 kg/m (0.22 lb/ft). Cross-sectional area: 42.412 mm². Moment of inertia Ix = 0.12 cm⁴, Iy = 0.12 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 0.9 mm ≈ 18 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	0.9 mm	0.04 in
Diameter (d)	15.9 mm	0.63 in
Weight	0.3 kg/m	0.22 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	42.41 mm²	0.066 in²
Moment of inertia (Ix)	0.12 cm⁴	0.00 in⁴
Moment of inertia (Iy)	0.12 cm⁴	0.00 in⁴
Elastic section modulus (Sx)	0.15 cm³	0.009 in³
Elastic section modulus (Sy)	0.15 cm³	0.009 in³
Plastic section modulus (Zx)	0.2 cm³	0.012 in³
Plastic section modulus (Zy)	0.2 cm³	0.012 in³
Radius of gyration (rx)	0.53 cm	0.209 in
Radius of gyration (ry)	0.53 cm	0.209 in