Round HSS

HSS 64x6.4

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.

Cross-section, to scaledimensions in mm

Dimensions

Outside diameterD: 63.5mm
Thicknesst: 6.35mm

Mass and area

Mass per lengthm: 8.95kg/m
Cross-sectional areaA: 1,140mm²
Outside perimeterP: 199.5mm

Strong axis x–x

Moment of inertiaIx: 0.471210⁶ mm⁴
Elastic section modulusSx: 14.8410³ mm³
Plastic section modulusZx: 20.8310³ mm³
Radius of gyrationrx: 20.33mm

Weak axis y–y

Moment of inertiaIy: 0.471210⁶ mm⁴
Elastic section modulusSy: 14.8410³ mm³
Plastic section modulusZy: 20.8310³ mm³
Radius of gyrationry: 20.33mm

Torsion and stability

Torsional constantJ: 942.410³ mm⁴