Round HSS

HSS 660x8.0

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 = 660.4t = 7.95t = 7.95
Cross-section, to scaledimensions in mm

Dimensions

Outside diameterD
660.4mm
Thicknesst
7.95mm

Mass and area

Mass per lengthm
127.9kg/m
Cross-sectional areaA
16,295mm²
Outside perimeterP
2,075mm

Strong axis x–x

Moment of inertiaIx
867.210⁶ mm⁴
Elastic section modulusSx
2,62610³ mm³
Plastic section modulusZx
3,38410³ mm³
Radius of gyrationrx
230.7mm

Weak axis y–y

Moment of inertiaIy
867.210⁶ mm⁴
Elastic section modulusSy
2,62610³ mm³
Plastic section modulusZy
3,38410³ mm³
Radius of gyrationry
230.7mm

Torsion and stability

Torsional constantJ
1,734,46010³ mm⁴

Equivalents in other standards