CHS 168x6.35 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 168x6.35 steel profile weighs 25.3 kg/m (17.01 lb/ft). Cross-sectional area: 3,224.774 mm². Moment of inertia Ix = 1,054.946 cm⁴, Iy = 1,054.946 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 6.35 mm ≈ 3 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	6.3 mm	0.25 in
Diameter (d)	168 mm	6.61 in
Weight	25.3 kg/m	17.01 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	3,224.77 mm²	4.998 in²
Moment of inertia (Ix)	1,054.95 cm⁴	25.35 in⁴
Moment of inertia (Iy)	1,054.95 cm⁴	25.35 in⁴
Elastic section modulus (Sx)	125.59 cm³	7.664 in³
Elastic section modulus (Sy)	125.59 cm³	7.664 in³
Plastic section modulus (Zx)	166.02 cm³	10.131 in³
Plastic section modulus (Zy)	166.02 cm³	10.131 in³
Radius of gyration (rx)	5.72 cm	2.252 in
Radius of gyration (ry)	5.72 cm	2.252 in