CHS 25.4x2.65 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 25.4x2.65 steel profile weighs 1.5 kg/m (1.00 lb/ft). Cross-sectional area: 189.399 mm². Moment of inertia Ix = 1.242 cm⁴, Iy = 1.242 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 2.65 mm ≈ 12 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	2.6 mm	0.10 in
Diameter (d)	25.4 mm	1.00 in
Weight	1.5 kg/m	1.00 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	189.4 mm²	0.294 in²
Moment of inertia (Ix)	1.24 cm⁴	0.03 in⁴
Moment of inertia (Iy)	1.24 cm⁴	0.03 in⁴
Elastic section modulus (Sx)	0.98 cm³	0.060 in³
Elastic section modulus (Sy)	0.98 cm³	0.060 in³
Plastic section modulus (Zx)	1.38 cm³	0.084 in³
Plastic section modulus (Zy)	1.38 cm³	0.084 in³
Radius of gyration (rx)	0.81 cm	0.319 in
Radius of gyration (ry)	0.81 cm	0.319 in