CHS 299x16 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 299x16 steel profile weighs 111.7 kg/m (75.04 lb/ft). Cross-sectional area: 14,225.132 mm². Moment of inertia Ix = 14,286.477 cm⁴, Iy = 14,286.477 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	16 mm	0.63 in
Diameter (d)	299 mm	11.77 in
Weight	111.7 kg/m	75.04 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	14,225.13 mm²	22.049 in²
Moment of inertia (Ix)	14,286.48 cm⁴	343.23 in⁴
Moment of inertia (Iy)	14,286.48 cm⁴	343.23 in⁴
Elastic section modulus (Sx)	955.62 cm³	58.316 in³
Elastic section modulus (Sy)	955.62 cm³	58.316 in³
Plastic section modulus (Zx)	1,282.79 cm³	78.281 in³
Plastic section modulus (Zy)	1,282.79 cm³	78.281 in³
Radius of gyration (rx)	10.02 cm	3.945 in
Radius of gyration (ry)	10.02 cm	3.945 in