CHS 273.0x6.3 · Weight & Dimensions

EN — 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 273.0x6.3 steel profile weighs 41.4 kg/m (27.82 lb/ft). Cross-sectional area: 5,278.5 mm². Moment of inertia Ix = 4,695.82 cm⁴, Iy = 4,695.82 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)	273 mm	10.75 in
Weight	41.4 kg/m	27.82 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	5,278.5 mm²	8.182 in²
Moment of inertia (Ix)	4,695.82 cm⁴	112.82 in⁴
Moment of inertia (Iy)	4,695.82 cm⁴	112.82 in⁴
Elastic section modulus (Sx)	344.02 cm³	20.993 in³
Elastic section modulus (Sy)	344.02 cm³	20.993 in³
Plastic section modulus (Zx)	448.2 cm³	27.351 in³
Plastic section modulus (Zy)	448.2 cm³	27.351 in³
Radius of gyration (rx)	9.43 cm	3.713 in
Radius of gyration (ry)	9.43 cm	3.713 in