CHS 57.15x1.55 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 57.15x1.55 steel profile weighs 2.1 kg/m (1.43 lb/ft). Cross-sectional area: 270.742 mm². Moment of inertia Ix = 10.47 cm⁴, Iy = 10.47 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 1.55 mm ≈ 16 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	1.6 mm	0.06 in
Diameter (d)	57.1 mm	2.25 in
Weight	2.1 kg/m	1.43 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	270.74 mm²	0.420 in²
Moment of inertia (Ix)	10.47 cm⁴	0.25 in⁴
Moment of inertia (Iy)	10.47 cm⁴	0.25 in⁴
Elastic section modulus (Sx)	3.66 cm³	0.224 in³
Elastic section modulus (Sy)	3.66 cm³	0.224 in³
Plastic section modulus (Zx)	4.79 cm³	0.292 in³
Plastic section modulus (Zy)	4.79 cm³	0.292 in³
Radius of gyration (rx)	1.97 cm	0.774 in
Radius of gyration (ry)	1.97 cm	0.774 in