CHS 88.9x4.32 Hylsa · Weight & Dimensions

Hylsa, 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 88.9x4.32 steel profile weighs 9.0 kg/m (6.05 lb/ft). Cross-sectional area: 1,147.893 mm². Moment of inertia Ix = 102.915 cm⁴, Iy = 102.915 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 4.32 mm ≈ 8 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	4.3 mm	0.17 in
Diameter (d)	88.9 mm	3.50 in
Weight	9.0 kg/m	6.05 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,147.89 mm²	1.779 in²
Moment of inertia (Ix)	102.91 cm⁴	2.47 in⁴
Moment of inertia (Iy)	102.91 cm⁴	2.47 in⁴
Elastic section modulus (Sx)	23.15 cm³	1.413 in³
Elastic section modulus (Sy)	23.15 cm³	1.413 in³
Plastic section modulus (Zx)	30.93 cm³	1.888 in³
Plastic section modulus (Zy)	30.93 cm³	1.888 in³
Radius of gyration (rx)	2.99 cm	1.179 in
Radius of gyration (ry)	2.99 cm	1.179 in