CHS 140x4 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 140x4 steel profile weighs 13.4 kg/m (9.02 lb/ft). Cross-sectional area: 1,709.026 mm². Moment of inertia Ix = 395.469 cm⁴, Iy = 395.469 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 4 mm ≈ 8 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	4 mm	0.16 in
Diameter (d)	140 mm	5.51 in
Weight	13.4 kg/m	9.02 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,709.03 mm²	2.649 in²
Moment of inertia (Ix)	395.47 cm⁴	9.50 in⁴
Moment of inertia (Iy)	395.47 cm⁴	9.50 in⁴
Elastic section modulus (Sx)	56.5 cm³	3.448 in³
Elastic section modulus (Sy)	56.5 cm³	3.448 in³
Plastic section modulus (Zx)	74.01 cm³	4.516 in³
Plastic section modulus (Zy)	74.01 cm³	4.516 in³
Radius of gyration (rx)	4.81 cm	1.894 in
Radius of gyration (ry)	4.81 cm	1.894 in