CHS 102x9 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 102x9 steel profile weighs 20.6 kg/m (13.87 lb/ft). Cross-sectional area: 2,629.513 mm². Moment of inertia Ix = 286.946 cm⁴, Iy = 286.946 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	9 mm	0.35 in
Diameter (d)	102 mm	4.02 in
Weight	20.6 kg/m	13.87 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,629.51 mm²	4.076 in²
Moment of inertia (Ix)	286.95 cm⁴	6.89 in⁴
Moment of inertia (Iy)	286.95 cm⁴	6.89 in⁴
Elastic section modulus (Sx)	56.26 cm³	3.433 in³
Elastic section modulus (Sy)	56.26 cm³	3.433 in³
Plastic section modulus (Zx)	78.08 cm³	4.765 in³
Plastic section modulus (Zy)	78.08 cm³	4.765 in³
Radius of gyration (rx)	3.3 cm	1.301 in
Radius of gyration (ry)	3.3 cm	1.301 in