CHS 45x6 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 45x6 steel profile weighs 5.8 kg/m (3.88 lb/ft). Cross-sectional area: 735.133 mm². Moment of inertia Ix = 14.308 cm⁴, Iy = 14.308 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 6 mm ≈ 4 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	6 mm	0.24 in
Diameter (d)	45 mm	1.77 in
Weight	5.8 kg/m	3.88 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	735.13 mm²	1.139 in²
Moment of inertia (Ix)	14.31 cm⁴	0.34 in⁴
Moment of inertia (Iy)	14.31 cm⁴	0.34 in⁴
Elastic section modulus (Sx)	6.36 cm³	0.388 in³
Elastic section modulus (Sy)	6.36 cm³	0.388 in³
Plastic section modulus (Zx)	9.2 cm³	0.561 in³
Plastic section modulus (Zy)	9.2 cm³	0.561 in³
Radius of gyration (rx)	1.4 cm	0.549 in
Radius of gyration (ry)	1.4 cm	0.549 in