CHS 245x5 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 245x5 steel profile weighs 29.6 kg/m (19.88 lb/ft). Cross-sectional area: 3,769.911 mm². Moment of inertia Ix = 2,715.514 cm⁴, Iy = 2,715.514 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 5 mm ≈ 6 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	5 mm	0.20 in
Diameter (d)	245 mm	9.65 in
Weight	29.6 kg/m	19.88 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	3,769.91 mm²	5.843 in²
Moment of inertia (Ix)	2,715.51 cm⁴	65.24 in⁴
Moment of inertia (Iy)	2,715.51 cm⁴	65.24 in⁴
Elastic section modulus (Sx)	221.67 cm³	13.527 in³
Elastic section modulus (Sy)	221.67 cm³	13.527 in³
Plastic section modulus (Zx)	288.04 cm³	17.577 in³
Plastic section modulus (Zy)	288.04 cm³	17.577 in³
Radius of gyration (rx)	8.49 cm	3.341 in
Radius of gyration (ry)	8.49 cm	3.341 in