CHS 159x7 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 159x7 steel profile weighs 26.2 kg/m (17.63 lb/ft). Cross-sectional area: 3,342.655 mm². Moment of inertia Ix = 967.406 cm⁴, Iy = 967.406 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	7 mm	0.28 in
Diameter (d)	159 mm	6.26 in
Weight	26.2 kg/m	17.63 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	3,342.65 mm²	5.181 in²
Moment of inertia (Ix)	967.41 cm⁴	23.24 in⁴
Moment of inertia (Iy)	967.41 cm⁴	23.24 in⁴
Elastic section modulus (Sx)	121.69 cm³	7.426 in³
Elastic section modulus (Sy)	121.69 cm³	7.426 in³
Plastic section modulus (Zx)	161.84 cm³	9.876 in³
Plastic section modulus (Zy)	161.84 cm³	9.876 in³
Radius of gyration (rx)	5.38 cm	2.118 in
Radius of gyration (ry)	5.38 cm	2.118 in