CHS 219x3 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 219x3 steel profile weighs 16.0 kg/m (10.74 lb/ft). Cross-sectional area: 2,035.752 mm². Moment of inertia Ix = 1,187.48 cm⁴, Iy = 1,187.48 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 3 mm ≈ 11 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	3 mm	0.12 in
Diameter (d)	219 mm	8.62 in
Weight	16.0 kg/m	10.74 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,035.75 mm²	3.155 in²
Moment of inertia (Ix)	1,187.48 cm⁴	28.53 in⁴
Moment of inertia (Iy)	1,187.48 cm⁴	28.53 in⁴
Elastic section modulus (Sx)	108.45 cm³	6.618 in³
Elastic section modulus (Sy)	108.45 cm³	6.618 in³
Plastic section modulus (Zx)	139.98 cm³	8.542 in³
Plastic section modulus (Zy)	139.98 cm³	8.542 in³
Radius of gyration (rx)	7.64 cm	3.007 in
Radius of gyration (ry)	7.64 cm	3.007 in