CHS 38.1x2.25 Gerdau · Weight & Dimensions

Gerdau, tubes · 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 38.1x2.25 steel profile weighs 2.0 kg/m (1.34 lb/ft). Cross-sectional area: 253.409 mm². Moment of inertia Ix = 4.087 cm⁴, Iy = 4.087 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 2.25 mm ≈ 13 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	2.3 mm	0.09 in
Diameter (d)	38.1 mm	1.50 in
Weight	2.0 kg/m	1.34 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	253.41 mm²	0.393 in²
Moment of inertia (Ix)	4.09 cm⁴	0.10 in⁴
Moment of inertia (Iy)	4.09 cm⁴	0.10 in⁴
Elastic section modulus (Sx)	2.15 cm³	0.131 in³
Elastic section modulus (Sy)	2.15 cm³	0.131 in³
Plastic section modulus (Zx)	2.9 cm³	0.177 in³
Plastic section modulus (Zy)	2.9 cm³	0.177 in³
Radius of gyration (rx)	1.27 cm	0.500 in
Radius of gyration (ry)	1.27 cm	0.500 in