CHS 159x30 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 159x30 steel profile weighs 95.4 kg/m (64.14 lb/ft). Cross-sectional area: 12,157.964 mm². Moment of inertia Ix = 2,665.785 cm⁴, Iy = 2,665.785 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	30 mm	1.18 in
Diameter (d)	159 mm	6.26 in
Weight	95.4 kg/m	64.14 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	12,157.96 mm²	18.845 in²
Moment of inertia (Ix)	2,665.79 cm⁴	64.05 in⁴
Moment of inertia (Iy)	2,665.79 cm⁴	64.05 in⁴
Elastic section modulus (Sx)	335.32 cm³	20.463 in³
Elastic section modulus (Sy)	335.32 cm³	20.463 in³
Plastic section modulus (Zx)	508.23 cm³	31.014 in³
Plastic section modulus (Zy)	508.23 cm³	31.014 in³
Radius of gyration (rx)	4.68 cm	1.844 in
Radius of gyration (ry)	4.68 cm	1.844 in