CHS 57x3.5 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 57x3.5 steel profile weighs 4.6 kg/m (3.10 lb/ft). Cross-sectional area: 588.263 mm². Moment of inertia Ix = 21.137 cm⁴, Iy = 21.137 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 3.5 mm ≈ 10 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	3.5 mm	0.14 in
Diameter (d)	57 mm	2.24 in
Weight	4.6 kg/m	3.10 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	588.26 mm²	0.912 in²
Moment of inertia (Ix)	21.14 cm⁴	0.51 in⁴
Moment of inertia (Iy)	21.14 cm⁴	0.51 in⁴
Elastic section modulus (Sx)	7.42 cm³	0.453 in³
Elastic section modulus (Sy)	7.42 cm³	0.453 in³
Plastic section modulus (Zx)	10.03 cm³	0.612 in³
Plastic section modulus (Zy)	10.03 cm³	0.612 in³
Radius of gyration (rx)	1.9 cm	0.746 in
Radius of gyration (ry)	1.9 cm	0.746 in