CHS 273x25 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 273x25 steel profile weighs 152.9 kg/m (102.75 lb/ft). Cross-sectional area: 19,477.874 mm². Moment of inertia Ix = 15,126.761 cm⁴, Iy = 15,126.761 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	25 mm	0.98 in
Diameter (d)	273 mm	10.75 in
Weight	152.9 kg/m	102.75 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	19,477.87 mm²	30.191 in²
Moment of inertia (Ix)	15,126.76 cm⁴	363.42 in⁴
Moment of inertia (Iy)	15,126.76 cm⁴	363.42 in⁴
Elastic section modulus (Sx)	1,108.19 cm³	67.626 in³
Elastic section modulus (Sy)	1,108.19 cm³	67.626 in³
Plastic section modulus (Zx)	1,542.81 cm³	94.148 in³
Plastic section modulus (Zy)	1,542.81 cm³	94.148 in³
Radius of gyration (rx)	8.81 cm	3.470 in
Radius of gyration (ry)	8.81 cm	3.470 in