CHS 355.6x6.35 CISC · Weight & Dimensions

CISC, 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 355.6x6.35 steel profile weighs 54.7 kg/m (36.75 lb/ft). Cross-sectional area: 6,967.228 mm². Moment of inertia Ix = 10,626.406 cm⁴, Iy = 10,626.406 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 6.35 mm ≈ 3 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	6.3 mm	0.25 in
Diameter (d)	355.6 mm	14.00 in
Weight	54.7 kg/m	36.75 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	6,967.23 mm²	10.799 in²
Moment of inertia (Ix)	10,626.41 cm⁴	255.30 in⁴
Moment of inertia (Iy)	10,626.41 cm⁴	255.30 in⁴
Elastic section modulus (Sx)	597.66 cm³	36.472 in³
Elastic section modulus (Sy)	597.66 cm³	36.472 in³
Plastic section modulus (Zx)	774.63 cm³	47.271 in³
Plastic section modulus (Zy)	774.63 cm³	47.271 in³
Radius of gyration (rx)	12.35 cm	4.862 in
Radius of gyration (ry)	12.35 cm	4.862 in