CHS 457x6.3 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 457x6.3 steel profile weighs 70.0 kg/m (47.05 lb/ft). Cross-sectional area: 8,920.27 mm². Moment of inertia Ix = 22,654.16 cm⁴, Iy = 22,654.16 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 6.3 mm ≈ 3 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	6.3 mm	0.25 in
Diameter (d)	457 mm	17.99 in
Weight	70.0 kg/m	47.05 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	8,920.27 mm²	13.826 in²
Moment of inertia (Ix)	22,654.16 cm⁴	544.27 in⁴
Moment of inertia (Iy)	22,654.16 cm⁴	544.27 in⁴
Elastic section modulus (Sx)	991.43 cm³	60.501 in³
Elastic section modulus (Sy)	991.43 cm³	60.501 in³
Plastic section modulus (Zx)	1,279.81 cm³	78.099 in³
Plastic section modulus (Zy)	1,279.81 cm³	78.099 in³
Radius of gyration (rx)	15.94 cm	6.274 in
Radius of gyration (ry)	15.94 cm	6.274 in