CHS 42x7 GOST · Weight & Dimensions

GOST, 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 42x7 steel profile weighs 6.0 kg/m (4.06 lb/ft). Cross-sectional area: 769.69 mm². Moment of inertia Ix = 12.257 cm⁴, Iy = 12.257 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	7 mm	0.28 in
Diameter (d)	42 mm	1.65 in
Weight	6.0 kg/m	4.06 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	769.69 mm²	1.193 in²
Moment of inertia (Ix)	12.26 cm⁴	0.29 in⁴
Moment of inertia (Iy)	12.26 cm⁴	0.29 in⁴
Elastic section modulus (Sx)	5.84 cm³	0.356 in³
Elastic section modulus (Sy)	5.84 cm³	0.356 in³
Plastic section modulus (Zx)	8.69 cm³	0.530 in³
Plastic section modulus (Zy)	8.69 cm³	0.530 in³
Radius of gyration (rx)	1.26 cm	0.497 in
Radius of gyration (ry)	1.26 cm	0.497 in