CHS 127x2.5 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 127x2.5 steel profile weighs 7.7 kg/m (5.16 lb/ft). Cross-sectional area: 977.821 mm². Moment of inertia Ix = 189.532 cm⁴, Iy = 189.532 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)	127 mm	5.00 in
Weight	7.7 kg/m	5.16 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	977.82 mm²	1.516 in²
Moment of inertia (Ix)	189.53 cm⁴	4.55 in⁴
Moment of inertia (Iy)	189.53 cm⁴	4.55 in⁴
Elastic section modulus (Sx)	29.85 cm³	1.821 in³
Elastic section modulus (Sy)	29.85 cm³	1.821 in³
Plastic section modulus (Zx)	38.76 cm³	2.365 in³
Plastic section modulus (Zy)	38.76 cm³	2.365 in³
Radius of gyration (rx)	4.4 cm	1.733 in
Radius of gyration (ry)	4.4 cm	1.733 in