CHS 273x11 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 273x11 steel profile weighs 71.1 kg/m (47.76 lb/ft). Cross-sectional area: 9,054.07 mm². Moment of inertia Ix = 7,782.539 cm⁴, Iy = 7,782.539 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	11 mm	0.43 in
Diameter (d)	273 mm	10.75 in
Weight	71.1 kg/m	47.76 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	9,054.07 mm²	14.034 in²
Moment of inertia (Ix)	7,782.54 cm⁴	186.98 in⁴
Moment of inertia (Iy)	7,782.54 cm⁴	186.98 in⁴
Elastic section modulus (Sx)	570.15 cm³	34.793 in³
Elastic section modulus (Sy)	570.15 cm³	34.793 in³
Plastic section modulus (Zx)	755.53 cm³	46.105 in³
Plastic section modulus (Zy)	755.53 cm³	46.105 in³
Radius of gyration (rx)	9.27 cm	3.650 in
Radius of gyration (ry)	9.27 cm	3.650 in