CHS 76.2x4.5 SAISC · Weight & Dimensions

SAISC, 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 76.2x4.5 steel profile weighs 8.0 kg/m (5.35 lb/ft). Cross-sectional area: 1,013.635 mm². Moment of inertia Ix = 65.394 cm⁴, Iy = 65.394 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)	76.2 mm	3.00 in
Weight	8.0 kg/m	5.35 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,013.63 mm²	1.571 in²
Moment of inertia (Ix)	65.39 cm⁴	1.57 in⁴
Moment of inertia (Iy)	65.39 cm⁴	1.57 in⁴
Elastic section modulus (Sx)	17.16 cm³	1.047 in³
Elastic section modulus (Sy)	17.16 cm³	1.047 in³
Plastic section modulus (Zx)	23.16 cm³	1.414 in³
Plastic section modulus (Zy)	23.16 cm³	1.414 in³
Radius of gyration (rx)	2.54 cm	1.000 in
Radius of gyration (ry)	2.54 cm	1.000 in