CHS 108x12 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 108x12 steel profile weighs 28.4 kg/m (19.09 lb/ft). Cross-sectional area: 3,619.115 mm². Moment of inertia Ix = 423.436 cm⁴, Iy = 423.436 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	12 mm	0.47 in
Diameter (d)	108 mm	4.25 in
Weight	28.4 kg/m	19.09 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	3,619.11 mm²	5.610 in²
Moment of inertia (Ix)	423.44 cm⁴	10.17 in⁴
Moment of inertia (Iy)	423.44 cm⁴	10.17 in⁴
Elastic section modulus (Sx)	78.41 cm³	4.785 in³
Elastic section modulus (Sy)	78.41 cm³	4.785 in³
Plastic section modulus (Zx)	111.17 cm³	6.784 in³
Plastic section modulus (Zy)	111.17 cm³	6.784 in³
Radius of gyration (rx)	3.42 cm	1.347 in
Radius of gyration (ry)	3.42 cm	1.347 in