CHS 38x2.5 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 38x2.5 steel profile weighs 2.2 kg/m (1.48 lb/ft). Cross-sectional area: 278.816 mm². Moment of inertia Ix = 4.414 cm⁴, Iy = 4.414 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 2.5 mm ≈ 12 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	2.5 mm	0.10 in
Diameter (d)	38 mm	1.50 in
Weight	2.2 kg/m	1.48 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	278.82 mm²	0.432 in²
Moment of inertia (Ix)	4.41 cm⁴	0.11 in⁴
Moment of inertia (Iy)	4.41 cm⁴	0.11 in⁴
Elastic section modulus (Sx)	2.32 cm³	0.142 in³
Elastic section modulus (Sy)	2.32 cm³	0.142 in³
Plastic section modulus (Zx)	3.16 cm³	0.193 in³
Plastic section modulus (Zy)	3.16 cm³	0.193 in³
Radius of gyration (rx)	1.26 cm	0.495 in
Radius of gyration (ry)	1.26 cm	0.495 in