CHS 76.1x5 · Weight & Dimensions

EN — 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 76.1x5 steel profile weighs 8.8 kg/m (5.89 lb/ft). Cross-sectional area: 1,116.8 mm². Moment of inertia Ix = 70.92 cm⁴, Iy = 70.92 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 5 mm ≈ 6 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	5 mm	0.20 in
Diameter (d)	76.1 mm	3.00 in
Weight	8.8 kg/m	5.89 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,116.8 mm²	1.731 in²
Moment of inertia (Ix)	70.92 cm⁴	1.70 in⁴
Moment of inertia (Iy)	70.92 cm⁴	1.70 in⁴
Elastic section modulus (Sx)	18.64 cm³	1.137 in³
Elastic section modulus (Sy)	18.64 cm³	1.137 in³
Plastic section modulus (Zx)	25.32 cm³	1.545 in³
Plastic section modulus (Zy)	25.32 cm³	1.545 in³
Radius of gyration (rx)	2.52 cm	0.992 in
Radius of gyration (ry)	2.52 cm	0.992 in