CHS 245x9 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 245x9 steel profile weighs 52.4 kg/m (35.20 lb/ft). Cross-sectional area: 6,672.743 mm². Moment of inertia Ix = 4,652.32 cm⁴, Iy = 4,652.32 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	9 mm	0.35 in
Diameter (d)	245 mm	9.65 in
Weight	52.4 kg/m	35.20 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	6,672.74 mm²	10.343 in²
Moment of inertia (Ix)	4,652.32 cm⁴	111.77 in⁴
Moment of inertia (Iy)	4,652.32 cm⁴	111.77 in⁴
Elastic section modulus (Sx)	379.78 cm³	23.176 in³
Elastic section modulus (Sy)	379.78 cm³	23.176 in³
Plastic section modulus (Zx)	501.51 cm³	30.604 in³
Plastic section modulus (Zy)	501.51 cm³	30.604 in³
Radius of gyration (rx)	8.35 cm	3.287 in
Radius of gyration (ry)	8.35 cm	3.287 in