CHS 219x20 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 219x20 steel profile weighs 98.2 kg/m (65.96 lb/ft). Cross-sectional area: 12,503.539 mm². Moment of inertia Ix = 6,251.926 cm⁴, Iy = 6,251.926 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	20 mm	0.79 in
Diameter (d)	219 mm	8.62 in
Weight	98.2 kg/m	65.96 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	12,503.54 mm²	19.380 in²
Moment of inertia (Ix)	6,251.93 cm⁴	150.20 in⁴
Moment of inertia (Iy)	6,251.93 cm⁴	150.20 in⁴
Elastic section modulus (Sx)	570.95 cm³	34.842 in³
Elastic section modulus (Sy)	570.95 cm³	34.842 in³
Plastic section modulus (Zx)	794.69 cm³	48.495 in³
Plastic section modulus (Zy)	794.69 cm³	48.495 in³
Radius of gyration (rx)	7.07 cm	2.784 in
Radius of gyration (ry)	7.07 cm	2.784 in