CHS 89x6 GOST · Weight & Dimensions

GOST, 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 89x6 steel profile weighs 12.3 kg/m (8.25 lb/ft). Cross-sectional area: 1,564.513 mm². Moment of inertia Ix = 135.428 cm⁴, Iy = 135.428 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 6 mm ≈ 4 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	6 mm	0.24 in
Diameter (d)	89 mm	3.50 in
Weight	12.3 kg/m	8.25 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,564.51 mm²	2.425 in²
Moment of inertia (Ix)	135.43 cm⁴	3.25 in⁴
Moment of inertia (Iy)	135.43 cm⁴	3.25 in⁴
Elastic section modulus (Sx)	30.43 cm³	1.857 in³
Elastic section modulus (Sy)	30.43 cm³	1.857 in³
Plastic section modulus (Zx)	41.41 cm³	2.527 in³
Plastic section modulus (Zy)	41.41 cm³	2.527 in³
Radius of gyration (rx)	2.94 cm	1.158 in
Radius of gyration (ry)	2.94 cm	1.158 in