CHS 88.9x4.5 V&M do Brasil · Weight & Dimensions

V&M do Brasil, hot-rolled 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 88.9x4.5 steel profile weighs 9.4 kg/m (6.30 lb/ft). Cross-sectional area: 1,193.177 mm². Moment of inertia Ix = 106.545 cm⁴, Iy = 106.545 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 4.5 mm ≈ 7 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	4.5 mm	0.18 in
Diameter (d)	88.9 mm	3.50 in
Weight	9.4 kg/m	6.30 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,193.18 mm²	1.849 in²
Moment of inertia (Ix)	106.54 cm⁴	2.56 in⁴
Moment of inertia (Iy)	106.54 cm⁴	2.56 in⁴
Elastic section modulus (Sx)	23.97 cm³	1.463 in³
Elastic section modulus (Sy)	23.97 cm³	1.463 in³
Plastic section modulus (Zx)	32.09 cm³	1.958 in³
Plastic section modulus (Zy)	32.09 cm³	1.958 in³
Radius of gyration (rx)	2.99 cm	1.176 in
Radius of gyration (ry)	2.99 cm	1.176 in