CHS 139.7x3.6 Tata Steel Celsius · Weight & Dimensions

Tata Steel Celsius · 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 139.7x3.6 steel profile weighs 12.1 kg/m (8.13 lb/ft). Cross-sectional area: 1,539.255 mm². Moment of inertia Ix = 356.649 cm⁴, Iy = 356.649 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 3.6 mm ≈ 9 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	3.6 mm	0.14 in
Diameter (d)	139.7 mm	5.50 in
Weight	12.1 kg/m	8.13 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,539.25 mm²	2.386 in²
Moment of inertia (Ix)	356.65 cm⁴	8.57 in⁴
Moment of inertia (Iy)	356.65 cm⁴	8.57 in⁴
Elastic section modulus (Sx)	51.06 cm³	3.116 in³
Elastic section modulus (Sy)	51.06 cm³	3.116 in³
Plastic section modulus (Zx)	66.7 cm³	4.070 in³
Plastic section modulus (Zy)	66.7 cm³	4.070 in³
Radius of gyration (rx)	4.81 cm	1.895 in
Radius of gyration (ry)	4.81 cm	1.895 in