CHS 146x9 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 146x9 steel profile weighs 30.4 kg/m (20.44 lb/ft). Cross-sectional area: 3,873.584 mm². Moment of inertia Ix = 912.713 cm⁴, Iy = 912.713 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	9 mm	0.35 in
Diameter (d)	146 mm	5.75 in
Weight	30.4 kg/m	20.44 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	3,873.58 mm²	6.004 in²
Moment of inertia (Ix)	912.71 cm⁴	21.93 in⁴
Moment of inertia (Iy)	912.71 cm⁴	21.93 in⁴
Elastic section modulus (Sx)	125.03 cm³	7.630 in³
Elastic section modulus (Sy)	125.03 cm³	7.630 in³
Plastic section modulus (Zx)	169.16 cm³	10.323 in³
Plastic section modulus (Zy)	169.16 cm³	10.323 in³
Radius of gyration (rx)	4.85 cm	1.911 in
Radius of gyration (ry)	4.85 cm	1.911 in