CHS 203x36 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 203x36 steel profile weighs 148.3 kg/m (99.63 lb/ft). Cross-sectional area: 18,887.255 mm². Moment of inertia Ix = 6,890.307 cm⁴, Iy = 6,890.307 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	36 mm	1.42 in
Diameter (d)	203 mm	7.99 in
Weight	148.3 kg/m	99.63 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	18,887.26 mm²	29.275 in²
Moment of inertia (Ix)	6,890.31 cm⁴	165.54 in⁴
Moment of inertia (Iy)	6,890.31 cm⁴	165.54 in⁴
Elastic section modulus (Sx)	678.85 cm³	41.426 in³
Elastic section modulus (Sy)	678.85 cm³	41.426 in³
Plastic section modulus (Zx)	1,019.56 cm³	62.217 in³
Plastic section modulus (Zy)	1,019.56 cm³	62.217 in³
Radius of gyration (rx)	6.04 cm	2.378 in
Radius of gyration (ry)	6.04 cm	2.378 in