CHS 127x12 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 127x12 steel profile weighs 34.0 kg/m (22.87 lb/ft). Cross-sectional area: 4,335.398 mm². Moment of inertia Ix = 724.499 cm⁴, Iy = 724.499 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	12 mm	0.47 in
Diameter (d)	127 mm	5.00 in
Weight	34.0 kg/m	22.87 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	4,335.4 mm²	6.720 in²
Moment of inertia (Ix)	724.5 cm⁴	17.41 in⁴
Moment of inertia (Iy)	724.5 cm⁴	17.41 in⁴
Elastic section modulus (Sx)	114.09 cm³	6.962 in³
Elastic section modulus (Sy)	114.09 cm³	6.962 in³
Plastic section modulus (Zx)	159.28 cm³	9.720 in³
Plastic section modulus (Zy)	159.28 cm³	9.720 in³
Radius of gyration (rx)	4.09 cm	1.609 in
Radius of gyration (ry)	4.09 cm	1.609 in