CHS 101.6x4 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 101.6x4 steel profile weighs 9.6 kg/m (6.46 lb/ft). Cross-sectional area: 1,226.478 mm². Moment of inertia Ix = 146.284 cm⁴, Iy = 146.284 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)	101.6 mm	4.00 in
Weight	9.6 kg/m	6.46 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,226.48 mm²	1.901 in²
Moment of inertia (Ix)	146.28 cm⁴	3.51 in⁴
Moment of inertia (Iy)	146.28 cm⁴	3.51 in⁴
Elastic section modulus (Sx)	28.8 cm³	1.757 in³
Elastic section modulus (Sy)	28.8 cm³	1.757 in³
Plastic section modulus (Zx)	38.12 cm³	2.327 in³
Plastic section modulus (Zy)	38.12 cm³	2.327 in³
Radius of gyration (rx)	3.45 cm	1.360 in
Radius of gyration (ry)	3.45 cm	1.360 in