CHS 159x11 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 159x11 steel profile weighs 40.1 kg/m (26.98 lb/ft). Cross-sectional area: 5,114.513 mm². Moment of inertia Ix = 1,408.089 cm⁴, Iy = 1,408.089 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	11 mm	0.43 in
Diameter (d)	159 mm	6.26 in
Weight	40.1 kg/m	26.98 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	5,114.51 mm²	7.927 in²
Moment of inertia (Ix)	1,408.09 cm⁴	33.83 in⁴
Moment of inertia (Iy)	1,408.09 cm⁴	33.83 in⁴
Elastic section modulus (Sx)	177.12 cm³	10.808 in³
Elastic section modulus (Sy)	177.12 cm³	10.808 in³
Plastic section modulus (Zx)	241.39 cm³	14.730 in³
Plastic section modulus (Zy)	241.39 cm³	14.730 in³
Radius of gyration (rx)	5.25 cm	2.066 in
Radius of gyration (ry)	5.25 cm	2.066 in