CHS 127x5 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 127x5 steel profile weighs 15.0 kg/m (10.11 lb/ft). Cross-sectional area: 1,916.372 mm². Moment of inertia Ix = 357.14 cm⁴, Iy = 357.14 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 5 mm ≈ 6 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	5 mm	0.20 in
Diameter (d)	127 mm	5.00 in
Weight	15.0 kg/m	10.11 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,916.37 mm²	2.970 in²
Moment of inertia (Ix)	357.14 cm⁴	8.58 in⁴
Moment of inertia (Iy)	357.14 cm⁴	8.58 in⁴
Elastic section modulus (Sx)	56.24 cm³	3.432 in³
Elastic section modulus (Sy)	56.24 cm³	3.432 in³
Plastic section modulus (Zx)	74.46 cm³	4.544 in³
Plastic section modulus (Zy)	74.46 cm³	4.544 in³
Radius of gyration (rx)	4.32 cm	1.700 in
Radius of gyration (ry)	4.32 cm	1.700 in