CHS 146x20 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 146x20 steel profile weighs 62.1 kg/m (41.76 lb/ft). Cross-sectional area: 7,916.813 mm². Moment of inertia Ix = 1,610.676 cm⁴, Iy = 1,610.676 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	20 mm	0.79 in
Diameter (d)	146 mm	5.75 in
Weight	62.1 kg/m	41.76 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	7,916.81 mm²	12.271 in²
Moment of inertia (Ix)	1,610.68 cm⁴	38.70 in⁴
Moment of inertia (Iy)	1,610.68 cm⁴	38.70 in⁴
Elastic section modulus (Sx)	220.64 cm³	13.464 in³
Elastic section modulus (Sy)	220.64 cm³	13.464 in³
Plastic section modulus (Zx)	320.19 cm³	19.539 in³
Plastic section modulus (Zy)	320.19 cm³	19.539 in³
Radius of gyration (rx)	4.51 cm	1.776 in
Radius of gyration (ry)	4.51 cm	1.776 in