CHS 127x7 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 127x7 steel profile weighs 20.7 kg/m (13.92 lb/ft). Cross-sectional area: 2,638.938 mm². Moment of inertia Ix = 476.625 cm⁴, Iy = 476.625 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	7 mm	0.28 in
Diameter (d)	127 mm	5.00 in
Weight	20.7 kg/m	13.92 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,638.94 mm²	4.090 in²
Moment of inertia (Ix)	476.63 cm⁴	11.45 in⁴
Moment of inertia (Iy)	476.63 cm⁴	11.45 in⁴
Elastic section modulus (Sx)	75.06 cm³	4.580 in³
Elastic section modulus (Sy)	75.06 cm³	4.580 in³
Plastic section modulus (Zx)	100.91 cm³	6.158 in³
Plastic section modulus (Zy)	100.91 cm³	6.158 in³
Radius of gyration (rx)	4.25 cm	1.673 in
Radius of gyration (ry)	4.25 cm	1.673 in