CHS 38x1.5 · 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 38x1.5 steel profile weighs 1.4 kg/m (0.91 lb/ft). Cross-sectional area: 172 mm². Moment of inertia Ix = 2.87 cm⁴, Iy = 2.87 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 1.5 mm ≈ 16 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	1.5 mm	0.06 in
Diameter (d)	38 mm	1.50 in
Weight	1.4 kg/m	0.91 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	172 mm²	0.267 in²
Moment of inertia (Ix)	2.87 cm⁴	0.07 in⁴
Moment of inertia (Iy)	2.87 cm⁴	0.07 in⁴
Elastic section modulus (Sx)	1.51 cm³	0.092 in³
Elastic section modulus (Sy)	1.51 cm³	0.092 in³
Plastic section modulus (Zx)	2 cm³	0.122 in³
Plastic section modulus (Zy)	2 cm³	0.122 in³
Radius of gyration (rx)	1.29 cm	0.508 in
Radius of gyration (ry)	1.29 cm	0.508 in