CHS 50x8 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 50x8 steel profile weighs 8.3 kg/m (5.57 lb/ft). Cross-sectional area: 1,055.575 mm². Moment of inertia Ix = 24.12 cm⁴, Iy = 24.12 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	8 mm	0.31 in
Diameter (d)	50 mm	1.97 in
Weight	8.3 kg/m	5.57 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,055.58 mm²	1.636 in²
Moment of inertia (Ix)	24.12 cm⁴	0.58 in⁴
Moment of inertia (Iy)	24.12 cm⁴	0.58 in⁴
Elastic section modulus (Sx)	9.65 cm³	0.589 in³
Elastic section modulus (Sy)	9.65 cm³	0.589 in³
Plastic section modulus (Zx)	14.28 cm³	0.872 in³
Plastic section modulus (Zy)	14.28 cm³	0.872 in³
Radius of gyration (rx)	1.51 cm	0.595 in
Radius of gyration (ry)	1.51 cm	0.595 in