CHS 159x12 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 159x12 steel profile weighs 43.5 kg/m (29.23 lb/ft). Cross-sectional area: 5,541.769 mm². Moment of inertia Ix = 1,506.876 cm⁴, Iy = 1,506.876 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	12 mm	0.47 in
Diameter (d)	159 mm	6.26 in
Weight	43.5 kg/m	29.23 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	5,541.77 mm²	8.590 in²
Moment of inertia (Ix)	1,506.88 cm⁴	36.20 in⁴
Moment of inertia (Iy)	1,506.88 cm⁴	36.20 in⁴
Elastic section modulus (Sx)	189.54 cm³	11.567 in³
Elastic section modulus (Sy)	189.54 cm³	11.567 in³
Plastic section modulus (Zx)	259.88 cm³	15.859 in³
Plastic section modulus (Zy)	259.88 cm³	15.859 in³
Radius of gyration (rx)	5.21 cm	2.053 in
Radius of gyration (ry)	5.21 cm	2.053 in