CHS 219x6.3 AHMSA · Weight & Dimensions

AHMSA, 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 219x6.3 steel profile weighs 33.0 kg/m (22.21 lb/ft). Cross-sectional area: 4,209.766 mm². Moment of inertia Ix = 2,382.779 cm⁴, Iy = 2,382.779 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 6.3 mm ≈ 3 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	6.3 mm	0.25 in
Diameter (d)	219 mm	8.62 in
Weight	33.0 kg/m	22.21 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	4,209.77 mm²	6.525 in²
Moment of inertia (Ix)	2,382.78 cm⁴	57.25 in⁴
Moment of inertia (Iy)	2,382.78 cm⁴	57.25 in⁴
Elastic section modulus (Sx)	217.61 cm³	13.279 in³
Elastic section modulus (Sy)	217.61 cm³	13.279 in³
Plastic section modulus (Zx)	285.1 cm³	17.398 in³
Plastic section modulus (Zy)	285.1 cm³	17.398 in³
Radius of gyration (rx)	7.52 cm	2.962 in
Radius of gyration (ry)	7.52 cm	2.962 in