CHS 12.7x1.2 Acindar · Weight & Dimensions

Acindar, 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 12.7x1.2 steel profile weighs 0.3 kg/m (0.23 lb/ft). Cross-sectional area: 43.354 mm². Moment of inertia Ix = 0.072 cm⁴, Iy = 0.072 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 1.2 mm ≈ 18 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	1.2 mm	0.05 in
Diameter (d)	12.7 mm	0.50 in
Weight	0.3 kg/m	0.23 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	43.35 mm²	0.067 in²
Moment of inertia (Ix)	0.07 cm⁴	0.00 in⁴
Moment of inertia (Iy)	0.07 cm⁴	0.00 in⁴
Elastic section modulus (Sx)	0.11 cm³	0.007 in³
Elastic section modulus (Sy)	0.11 cm³	0.007 in³
Plastic section modulus (Zx)	0.16 cm³	0.010 in³
Plastic section modulus (Zy)	0.16 cm³	0.010 in³
Radius of gyration (rx)	0.41 cm	0.161 in
Radius of gyration (ry)	0.41 cm	0.161 in