CHS 406.4x8 Tata Steel Hybox · Weight & Dimensions

Tata Steel Hybox · 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 406.4x8 steel profile weighs 78.6 kg/m (52.82 lb/ft). Cross-sectional area: 10,012.884 mm². Moment of inertia Ix = 19,873.893 cm⁴, Iy = 19,873.893 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	8 mm	0.31 in
Diameter (d)	406.4 mm	16.00 in
Weight	78.6 kg/m	52.82 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	10,012.88 mm²	15.520 in²
Moment of inertia (Ix)	19,873.89 cm⁴	477.47 in⁴
Moment of inertia (Iy)	19,873.89 cm⁴	477.47 in⁴
Elastic section modulus (Sx)	978.05 cm³	59.684 in³
Elastic section modulus (Sy)	978.05 cm³	59.684 in³
Plastic section modulus (Zx)	1,269.95 cm³	77.497 in³
Plastic section modulus (Zy)	1,269.95 cm³	77.497 in³
Radius of gyration (rx)	14.09 cm	5.547 in
Radius of gyration (ry)	14.09 cm	5.547 in