CHS 73x12 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 73x12 steel profile weighs 18.1 kg/m (12.13 lb/ft). Cross-sectional area: 2,299.646 mm². Moment of inertia Ix = 111.102 cm⁴, Iy = 111.102 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	12 mm	0.47 in
Diameter (d)	73 mm	2.87 in
Weight	18.1 kg/m	12.13 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,299.65 mm²	3.564 in²
Moment of inertia (Ix)	111.1 cm⁴	2.67 in⁴
Moment of inertia (Iy)	111.1 cm⁴	2.67 in⁴
Elastic section modulus (Sx)	30.44 cm³	1.857 in³
Elastic section modulus (Sy)	30.44 cm³	1.857 in³
Plastic section modulus (Zx)	45.23 cm³	2.760 in³
Plastic section modulus (Zy)	45.23 cm³	2.760 in³
Radius of gyration (rx)	2.2 cm	0.865 in
Radius of gyration (ry)	2.2 cm	0.865 in