CHS 168x25 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 168x25 steel profile weighs 88.2 kg/m (59.24 lb/ft). Cross-sectional area: 11,231.194 mm². Moment of inertia Ix = 2,958.577 cm⁴, Iy = 2,958.577 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	25 mm	0.98 in
Diameter (d)	168 mm	6.61 in
Weight	88.2 kg/m	59.24 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	11,231.19 mm²	17.408 in²
Moment of inertia (Ix)	2,958.58 cm⁴	71.08 in⁴
Moment of inertia (Iy)	2,958.58 cm⁴	71.08 in⁴
Elastic section modulus (Sx)	352.21 cm³	21.493 in³
Elastic section modulus (Sy)	352.21 cm³	21.493 in³
Plastic section modulus (Zx)	516.43 cm³	31.515 in³
Plastic section modulus (Zy)	516.43 cm³	31.515 in³
Radius of gyration (rx)	5.13 cm	2.021 in
Radius of gyration (ry)	5.13 cm	2.021 in