Round HSS

HSS 102x4.8

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 = 101.6t = 4.78t = 4.78
Cross-section, to scaledimensions in mm

Dimensions

Outside diameterD
101.6mm
Thicknesst
4.78mm

Mass and area

Mass per lengthm
11.41kg/m
Cross-sectional areaA
1,454mm²
Outside perimeterP
319.2mm

Strong axis x–x

Moment of inertiaIx
1.70810⁶ mm⁴
Elastic section modulusSx
33.6210³ mm³
Plastic section modulusZx
44.8410³ mm³
Radius of gyrationrx
34.27mm

Weak axis y–y

Moment of inertiaIy
1.70810⁶ mm⁴
Elastic section modulusSy
33.6210³ mm³
Plastic section modulusZy
44.8410³ mm³
Radius of gyrationry
34.27mm

Torsion and stability

Torsional constantJ
3,41610³ mm⁴

Equivalents in other standards