CHS 356x12.7 IMCA · Weight & Dimensions

IMCA, 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 356x12.7 steel profile weighs 107.5 kg/m (72.25 lb/ft). Cross-sectional area: 13,697.061 mm². Moment of inertia Ix = 20,205.936 cm⁴, Iy = 20,205.936 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	12.7 mm	0.50 in
Diameter (d)	356 mm	14.02 in
Weight	107.5 kg/m	72.25 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	13,697.06 mm²	21.230 in²
Moment of inertia (Ix)	20,205.94 cm⁴	485.45 in⁴
Moment of inertia (Iy)	20,205.94 cm⁴	485.45 in⁴
Elastic section modulus (Sx)	1,135.16 cm³	69.272 in³
Elastic section modulus (Sy)	1,135.16 cm³	69.272 in³
Plastic section modulus (Zx)	1,497.44 cm³	91.380 in³
Plastic section modulus (Zy)	1,497.44 cm³	91.380 in³
Radius of gyration (rx)	12.15 cm	4.782 in
Radius of gyration (ry)	12.15 cm	4.782 in