CHS 159x8 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 159x8 steel profile weighs 29.8 kg/m (20.02 lb/ft). Cross-sectional area: 3,795.044 mm². Moment of inertia Ix = 1,084.671 cm⁴, Iy = 1,084.671 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	8 mm	0.31 in
Diameter (d)	159 mm	6.26 in
Weight	29.8 kg/m	20.02 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	3,795.04 mm²	5.882 in²
Moment of inertia (Ix)	1,084.67 cm⁴	26.06 in⁴
Moment of inertia (Iy)	1,084.67 cm⁴	26.06 in⁴
Elastic section modulus (Sx)	136.44 cm³	8.326 in³
Elastic section modulus (Sy)	136.44 cm³	8.326 in³
Plastic section modulus (Zx)	182.58 cm³	11.142 in³
Plastic section modulus (Zy)	182.58 cm³	11.142 in³
Radius of gyration (rx)	5.35 cm	2.105 in
Radius of gyration (ry)	5.35 cm	2.105 in