CHS 102x20 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 102x20 steel profile weighs 40.4 kg/m (27.18 lb/ft). Cross-sectional area: 5,152.212 mm². Moment of inertia Ix = 458.804 cm⁴, Iy = 458.804 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	20 mm	0.79 in
Diameter (d)	102 mm	4.02 in
Weight	40.4 kg/m	27.18 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	5,152.21 mm²	7.986 in²
Moment of inertia (Ix)	458.8 cm⁴	11.02 in⁴
Moment of inertia (Iy)	458.8 cm⁴	11.02 in⁴
Elastic section modulus (Sx)	89.96 cm³	5.490 in³
Elastic section modulus (Sy)	89.96 cm³	5.490 in³
Plastic section modulus (Zx)	137.15 cm³	8.369 in³
Plastic section modulus (Zy)	137.15 cm³	8.369 in³
Radius of gyration (rx)	2.98 cm	1.175 in
Radius of gyration (ry)	2.98 cm	1.175 in