CHS 219x9 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 219x9 steel profile weighs 46.6 kg/m (31.32 lb/ft). Cross-sectional area: 5,937.61 mm². Moment of inertia Ix = 3,279.119 cm⁴, Iy = 3,279.119 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	9 mm	0.35 in
Diameter (d)	219 mm	8.62 in
Weight	46.6 kg/m	31.32 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	5,937.61 mm²	9.203 in²
Moment of inertia (Ix)	3,279.12 cm⁴	78.78 in⁴
Moment of inertia (Iy)	3,279.12 cm⁴	78.78 in⁴
Elastic section modulus (Sx)	299.46 cm³	18.274 in³
Elastic section modulus (Sy)	299.46 cm³	18.274 in³
Plastic section modulus (Zx)	397.14 cm³	24.235 in³
Plastic section modulus (Zy)	397.14 cm³	24.235 in³
Radius of gyration (rx)	7.43 cm	2.926 in
Radius of gyration (ry)	7.43 cm	2.926 in