CHS 245x20 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 245x20 steel profile weighs 111.0 kg/m (74.58 lb/ft). Cross-sectional area: 14,137.167 mm². Moment of inertia Ix = 9,016.862 cm⁴, Iy = 9,016.862 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	20 mm	0.79 in
Diameter (d)	245 mm	9.65 in
Weight	111.0 kg/m	74.58 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	14,137.17 mm²	21.913 in²
Moment of inertia (Ix)	9,016.86 cm⁴	216.63 in⁴
Moment of inertia (Iy)	9,016.86 cm⁴	216.63 in⁴
Elastic section modulus (Sx)	736.07 cm³	44.918 in³
Elastic section modulus (Sy)	736.07 cm³	44.918 in³
Plastic section modulus (Zx)	1,015.17 cm³	61.950 in³
Plastic section modulus (Zy)	1,015.17 cm³	61.950 in³
Radius of gyration (rx)	7.99 cm	3.144 in
Radius of gyration (ry)	7.99 cm	3.144 in