CHS 108x4 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 108x4 steel profile weighs 10.3 kg/m (6.89 lb/ft). Cross-sectional area: 1,306.903 mm². Moment of inertia Ix = 176.955 cm⁴, Iy = 176.955 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)	108 mm	4.25 in
Weight	10.3 kg/m	6.89 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,306.9 mm²	2.026 in²
Moment of inertia (Ix)	176.95 cm⁴	4.25 in⁴
Moment of inertia (Iy)	176.95 cm⁴	4.25 in⁴
Elastic section modulus (Sx)	32.77 cm³	2.000 in³
Elastic section modulus (Sy)	32.77 cm³	2.000 in³
Plastic section modulus (Zx)	43.29 cm³	2.641 in³
Plastic section modulus (Zy)	43.29 cm³	2.641 in³
Radius of gyration (rx)	3.68 cm	1.449 in
Radius of gyration (ry)	3.68 cm	1.449 in