CHS 159x17 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 159x17 steel profile weighs 59.5 kg/m (40.00 lb/ft). Cross-sectional area: 7,583.805 mm². Moment of inertia Ix = 1,938.894 cm⁴, Iy = 1,938.894 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	17 mm	0.67 in
Diameter (d)	159 mm	6.26 in
Weight	59.5 kg/m	40.00 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	7,583.8 mm²	11.755 in²
Moment of inertia (Ix)	1,938.89 cm⁴	46.58 in⁴
Moment of inertia (Iy)	1,938.89 cm⁴	46.58 in⁴
Elastic section modulus (Sx)	243.89 cm³	14.883 in³
Elastic section modulus (Sy)	243.89 cm³	14.883 in³
Plastic section modulus (Zx)	344.43 cm³	21.018 in³
Plastic section modulus (Zy)	344.43 cm³	21.018 in³
Radius of gyration (rx)	5.06 cm	1.991 in
Radius of gyration (ry)	5.06 cm	1.991 in