CHS 34.1x4 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 34.1x4 steel profile weighs 3.0 kg/m (2.00 lb/ft). Cross-sectional area: 378.248 mm². Moment of inertia Ix = 4.359 cm⁴, Iy = 4.359 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)	34.1 mm	1.34 in
Weight	3.0 kg/m	2.00 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	378.25 mm²	0.586 in²
Moment of inertia (Ix)	4.36 cm⁴	0.10 in⁴
Moment of inertia (Iy)	4.36 cm⁴	0.10 in⁴
Elastic section modulus (Sx)	2.56 cm³	0.156 in³
Elastic section modulus (Sy)	2.56 cm³	0.156 in³
Plastic section modulus (Zx)	3.65 cm³	0.222 in³
Plastic section modulus (Zy)	3.65 cm³	0.222 in³
Radius of gyration (rx)	1.07 cm	0.423 in
Radius of gyration (ry)	1.07 cm	0.423 in