CHS 356x35.7 AHMSA · Weight & Dimensions

AHMSA, 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 356x35.7 steel profile weighs 282.0 kg/m (189.50 lb/ft). Cross-sectional area: 35,923.201 mm². Moment of inertia Ix = 46,640.25 cm⁴, Iy = 46,640.25 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	35.7 mm	1.41 in
Diameter (d)	356 mm	14.02 in
Weight	282.0 kg/m	189.50 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	35,923.2 mm²	55.681 in²
Moment of inertia (Ix)	46,640.25 cm⁴	1120.53 in⁴
Moment of inertia (Iy)	46,640.25 cm⁴	1120.53 in⁴
Elastic section modulus (Sx)	2,620.24 cm³	159.897 in³
Elastic section modulus (Sy)	2,620.24 cm³	159.897 in³
Plastic section modulus (Zx)	3,677.7 cm³	224.428 in³
Plastic section modulus (Zy)	3,677.7 cm³	224.428 in³
Radius of gyration (rx)	11.39 cm	4.486 in
Radius of gyration (ry)	11.39 cm	4.486 in