CHS 38x7 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 38x7 steel profile weighs 5.3 kg/m (3.60 lb/ft). Cross-sectional area: 681.726 mm². Moment of inertia Ix = 8.607 cm⁴, Iy = 8.607 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	7 mm	0.28 in
Diameter (d)	38 mm	1.50 in
Weight	5.3 kg/m	3.60 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	681.73 mm²	1.057 in²
Moment of inertia (Ix)	8.61 cm⁴	0.21 in⁴
Moment of inertia (Iy)	8.61 cm⁴	0.21 in⁴
Elastic section modulus (Sx)	4.53 cm³	0.276 in³
Elastic section modulus (Sy)	4.53 cm³	0.276 in³
Plastic section modulus (Zx)	6.84 cm³	0.417 in³
Plastic section modulus (Zy)	6.84 cm³	0.417 in³
Radius of gyration (rx)	1.12 cm	0.442 in
Radius of gyration (ry)	1.12 cm	0.442 in