Round HSS

HSS 406x8.0

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 = 406.4t = 7.92t = 7.92
Cross-section, to scaledimensions in mm

Dimensions

Outside diameterD
406.4mm
Thicknesst
7.92mm

Mass and area

Mass per lengthm
77.83kg/m
Cross-sectional areaA
9,915mm²
Outside perimeterP
1,277mm

Strong axis x–x

Moment of inertiaIx
196.910⁶ mm⁴
Elastic section modulusSx
968.810³ mm³
Plastic section modulusZx
1,25810³ mm³
Radius of gyrationrx
140.9mm

Weak axis y–y

Moment of inertiaIy
196.910⁶ mm⁴
Elastic section modulusSy
968.810³ mm³
Plastic section modulusZy
1,25810³ mm³
Radius of gyrationry
140.9mm

Torsion and stability

Torsional constantJ
393,73710³ mm⁴

Equivalents in other standards