CHS 245x18 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 245x18 steel profile weighs 100.8 kg/m (67.72 lb/ft). Cross-sectional area: 12,836.548 mm². Moment of inertia Ix = 8,320.169 cm⁴, Iy = 8,320.169 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	18 mm	0.71 in
Diameter (d)	245 mm	9.65 in
Weight	100.8 kg/m	67.72 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	12,836.55 mm²	19.897 in²
Moment of inertia (Ix)	8,320.17 cm⁴	199.89 in⁴
Moment of inertia (Iy)	8,320.17 cm⁴	199.89 in⁴
Elastic section modulus (Sx)	679.2 cm³	41.447 in³
Elastic section modulus (Sy)	679.2 cm³	41.447 in³
Plastic section modulus (Zx)	929.47 cm³	56.720 in³
Plastic section modulus (Zy)	929.47 cm³	56.720 in³
Radius of gyration (rx)	8.05 cm	3.170 in
Radius of gyration (ry)	8.05 cm	3.170 in