CHS 25.4x1.9 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 25.4x1.9 steel profile weighs 1.1 kg/m (0.74 lb/ft). Cross-sectional area: 140.272 mm². Moment of inertia Ix = 0.975 cm⁴, Iy = 0.975 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 1.9 mm ≈ 14 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	1.9 mm	0.07 in
Diameter (d)	25.4 mm	1.00 in
Weight	1.1 kg/m	0.74 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	140.27 mm²	0.217 in²
Moment of inertia (Ix)	0.97 cm⁴	0.02 in⁴
Moment of inertia (Iy)	0.97 cm⁴	0.02 in⁴
Elastic section modulus (Sx)	0.77 cm³	0.047 in³
Elastic section modulus (Sy)	0.77 cm³	0.047 in³
Plastic section modulus (Zx)	1.05 cm³	0.064 in³
Plastic section modulus (Zy)	1.05 cm³	0.064 in³
Radius of gyration (rx)	0.83 cm	0.328 in
Radius of gyration (ry)	0.83 cm	0.328 in