CHS 57x1 Hiasa · Weight & Dimensions

Hiasa, cold-formed sections · 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 57x1 steel profile weighs 1.4 kg/m (0.93 lb/ft). Cross-sectional area: 175.929 mm². Moment of inertia Ix = 6.899 cm⁴, Iy = 6.899 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 1 mm ≈ 18 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	1 mm	0.04 in
Diameter (d)	57 mm	2.24 in
Weight	1.4 kg/m	0.93 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	175.93 mm²	0.273 in²
Moment of inertia (Ix)	6.9 cm⁴	0.17 in⁴
Moment of inertia (Iy)	6.9 cm⁴	0.17 in⁴
Elastic section modulus (Sx)	2.42 cm³	0.148 in³
Elastic section modulus (Sy)	2.42 cm³	0.148 in³
Plastic section modulus (Zx)	3.14 cm³	0.191 in³
Plastic section modulus (Zy)	3.14 cm³	0.191 in³
Radius of gyration (rx)	1.98 cm	0.780 in
Radius of gyration (ry)	1.98 cm	0.780 in