CHS 76.1x4 · 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 76.1x4 steel profile weighs 7.1 kg/m (4.78 lb/ft). Cross-sectional area: 906 mm². Moment of inertia Ix = 59.06 cm⁴, Iy = 59.06 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 4 mm ≈ 8 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	4 mm	0.16 in
Diameter (d)	76.1 mm	3.00 in
Weight	7.1 kg/m	4.78 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	906 mm²	1.404 in²
Moment of inertia (Ix)	59.06 cm⁴	1.42 in⁴
Moment of inertia (Iy)	59.06 cm⁴	1.42 in⁴
Elastic section modulus (Sx)	15.52 cm³	0.947 in³
Elastic section modulus (Sy)	15.52 cm³	0.947 in³
Plastic section modulus (Zx)	20.81 cm³	1.270 in³
Plastic section modulus (Zy)	20.81 cm³	1.270 in³
Radius of gyration (rx)	2.55 cm	1.004 in
Radius of gyration (ry)	2.55 cm	1.004 in