CHS 45x7 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 45x7 steel profile weighs 6.6 kg/m (4.41 lb/ft). Cross-sectional area: 835.664 mm². Moment of inertia Ix = 15.596 cm⁴, Iy = 15.596 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	7 mm	0.28 in
Diameter (d)	45 mm	1.77 in
Weight	6.6 kg/m	4.41 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	835.66 mm²	1.295 in²
Moment of inertia (Ix)	15.6 cm⁴	0.37 in⁴
Moment of inertia (Iy)	15.6 cm⁴	0.37 in⁴
Elastic section modulus (Sx)	6.93 cm³	0.423 in³
Elastic section modulus (Sy)	6.93 cm³	0.423 in³
Plastic section modulus (Zx)	10.22 cm³	0.624 in³
Plastic section modulus (Zy)	10.22 cm³	0.624 in³
Radius of gyration (rx)	1.37 cm	0.538 in
Radius of gyration (ry)	1.37 cm	0.538 in