CHS 38.1x2.0 · Weight & Dimensions

EN — 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 38.1x2.0 steel profile weighs 1.8 kg/m (1.20 lb/ft). Cross-sectional area: 226.8 mm². Moment of inertia Ix = 3.71 cm⁴, Iy = 3.71 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 2 mm ≈ 14 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	2 mm	0.08 in
Diameter (d)	38.1 mm	1.50 in
Weight	1.8 kg/m	1.20 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	226.8 mm²	0.352 in²
Moment of inertia (Ix)	3.71 cm⁴	0.09 in⁴
Moment of inertia (Iy)	3.71 cm⁴	0.09 in⁴
Elastic section modulus (Sx)	1.95 cm³	0.119 in³
Elastic section modulus (Sy)	1.95 cm³	0.119 in³
Plastic section modulus (Zx)	2.61 cm³	0.159 in³
Plastic section modulus (Zy)	2.61 cm³	0.159 in³
Radius of gyration (rx)	1.28 cm	0.504 in
Radius of gyration (ry)	1.28 cm	0.504 in