Round HSS

HSS 73x6.4

Standard: CSA G40.20/G40.21Source: Calculated (exact engine)
Calculated: design thickness = nominal thickness (CSA G40.20, Class C), outside radius 2t. Range derived from ASTM A500 sizes — cross-check with the CISC tables.
xyD = 73.2t = 6.35t = 6.35
Cross-section, to scaledimensions in mm

Dimensions

Outside diameterD
73.2mm
Thicknesst
6.35mm

Mass and area

Mass per lengthm
10.47kg/m
Cross-sectional areaA
1,334mm²
Outside perimeterP
230mm

Strong axis x–x

Moment of inertiaIx
0.751710⁶ mm⁴
Elastic section modulusSx
20.5410³ mm³
Plastic section modulusZx
28.4610³ mm³
Radius of gyrationrx
23.74mm

Weak axis y–y

Moment of inertiaIy
0.751710⁶ mm⁴
Elastic section modulusSy
20.5410³ mm³
Plastic section modulusZy
28.4610³ mm³
Radius of gyrationry
23.74mm

Torsion and stability

Torsional constantJ
1,50310³ mm⁴

Equivalents in other standards