CHS 76x18 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 76x18 steel profile weighs 25.8 kg/m (17.30 lb/ft). Cross-sectional area: 3,279.823 mm². Moment of inertia Ix = 151.2 cm⁴, Iy = 151.2 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	18 mm	0.71 in
Diameter (d)	76 mm	2.99 in
Weight	25.8 kg/m	17.30 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	3,279.82 mm²	5.084 in²
Moment of inertia (Ix)	151.2 cm⁴	3.63 in⁴
Moment of inertia (Iy)	151.2 cm⁴	3.63 in⁴
Elastic section modulus (Sx)	39.79 cm³	2.428 in³
Elastic section modulus (Sy)	39.79 cm³	2.428 in³
Plastic section modulus (Zx)	62.5 cm³	3.814 in³
Plastic section modulus (Zy)	62.5 cm³	3.814 in³
Radius of gyration (rx)	2.15 cm	0.845 in
Radius of gyration (ry)	2.15 cm	0.845 in