CHS 63.5x0.9 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 63.5x0.9 steel profile weighs 1.4 kg/m (0.93 lb/ft). Cross-sectional area: 176.997 mm². Moment of inertia Ix = 8.672 cm⁴, Iy = 8.672 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)	63.5 mm	2.50 in
Weight	1.4 kg/m	0.93 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	177 mm²	0.274 in²
Moment of inertia (Ix)	8.67 cm⁴	0.21 in⁴
Moment of inertia (Iy)	8.67 cm⁴	0.21 in⁴
Elastic section modulus (Sx)	2.73 cm³	0.167 in³
Elastic section modulus (Sy)	2.73 cm³	0.167 in³
Plastic section modulus (Zx)	3.53 cm³	0.215 in³
Plastic section modulus (Zy)	3.53 cm³	0.215 in³
Radius of gyration (rx)	2.21 cm	0.871 in
Radius of gyration (ry)	2.21 cm	0.871 in