CHS 127x30 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 127x30 steel profile weighs 71.8 kg/m (48.22 lb/ft). Cross-sectional area: 9,142.035 mm². Moment of inertia Ix = 1,178.065 cm⁴, Iy = 1,178.065 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	30 mm	1.18 in
Diameter (d)	127 mm	5.00 in
Weight	71.8 kg/m	48.22 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	9,142.03 mm²	14.170 in²
Moment of inertia (Ix)	1,178.07 cm⁴	28.30 in⁴
Moment of inertia (Iy)	1,178.07 cm⁴	28.30 in⁴
Elastic section modulus (Sx)	185.52 cm³	11.321 in³
Elastic section modulus (Sy)	185.52 cm³	11.321 in³
Plastic section modulus (Zx)	291.27 cm³	17.774 in³
Plastic section modulus (Zy)	291.27 cm³	17.774 in³
Radius of gyration (rx)	3.59 cm	1.413 in
Radius of gyration (ry)	3.59 cm	1.413 in