CHS 273x40 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 273x40 steel profile weighs 229.8 kg/m (154.46 lb/ft). Cross-sectional area: 29,279.644 mm². Moment of inertia Ix = 20,455.125 cm⁴, Iy = 20,455.125 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	40 mm	1.57 in
Diameter (d)	273 mm	10.75 in
Weight	229.8 kg/m	154.46 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	29,279.64 mm²	45.383 in²
Moment of inertia (Ix)	20,455.12 cm⁴	491.43 in⁴
Moment of inertia (Iy)	20,455.12 cm⁴	491.43 in⁴
Elastic section modulus (Sx)	1,498.54 cm³	91.447 in³
Elastic section modulus (Sy)	1,498.54 cm³	91.447 in³
Plastic section modulus (Zx)	2,192.89 cm³	133.819 in³
Plastic section modulus (Zy)	2,192.89 cm³	133.819 in³
Radius of gyration (rx)	8.36 cm	3.291 in
Radius of gyration (ry)	8.36 cm	3.291 in