CHS 159x25 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 159x25 steel profile weighs 82.6 kg/m (55.52 lb/ft). Cross-sectional area: 10,524.335 mm². Moment of inertia Ix = 2,444.408 cm⁴, Iy = 2,444.408 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	25 mm	0.98 in
Diameter (d)	159 mm	6.26 in
Weight	82.6 kg/m	55.52 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	10,524.34 mm²	16.313 in²
Moment of inertia (Ix)	2,444.41 cm⁴	58.73 in⁴
Moment of inertia (Iy)	2,444.41 cm⁴	58.73 in⁴
Elastic section modulus (Sx)	307.47 cm³	18.763 in³
Elastic section modulus (Sy)	307.47 cm³	18.763 in³
Plastic section modulus (Zx)	454.11 cm³	27.712 in³
Plastic section modulus (Zy)	454.11 cm³	27.712 in³
Radius of gyration (rx)	4.82 cm	1.897 in
Radius of gyration (ry)	4.82 cm	1.897 in