CHS 203x28 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 203x28 steel profile weighs 120.8 kg/m (81.20 lb/ft). Cross-sectional area: 15,393.804 mm². Moment of inertia Ix = 6,043.8 cm⁴, Iy = 6,043.8 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	28 mm	1.10 in
Diameter (d)	203 mm	7.99 in
Weight	120.8 kg/m	81.20 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	15,393.8 mm²	23.860 in²
Moment of inertia (Ix)	6,043.8 cm⁴	145.20 in⁴
Moment of inertia (Iy)	6,043.8 cm⁴	145.20 in⁴
Elastic section modulus (Sx)	595.45 cm³	36.337 in³
Elastic section modulus (Sy)	595.45 cm³	36.337 in³
Plastic section modulus (Zx)	864.82 cm³	52.775 in³
Plastic section modulus (Zy)	864.82 cm³	52.775 in³
Radius of gyration (rx)	6.27 cm	2.467 in
Radius of gyration (ry)	6.27 cm	2.467 in