CHS 219.1x6.35 CISC · Weight & Dimensions

CISC, 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 219.1x6.35 steel profile weighs 33.3 kg/m (22.39 lb/ft). Cross-sectional area: 4,244.174 mm². Moment of inertia Ix = 2,403.417 cm⁴, Iy = 2,403.417 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 6.35 mm ≈ 3 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	6.3 mm	0.25 in
Diameter (d)	219.1 mm	8.63 in
Weight	33.3 kg/m	22.39 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	4,244.17 mm²	6.578 in²
Moment of inertia (Ix)	2,403.42 cm⁴	57.74 in⁴
Moment of inertia (Iy)	2,403.42 cm⁴	57.74 in⁴
Elastic section modulus (Sx)	219.39 cm³	13.388 in³
Elastic section modulus (Sy)	219.39 cm³	13.388 in³
Plastic section modulus (Zx)	287.5 cm³	17.545 in³
Plastic section modulus (Zy)	287.5 cm³	17.545 in³
Radius of gyration (rx)	7.53 cm	2.963 in
Radius of gyration (ry)	7.53 cm	2.963 in