Round HSS

HSS 305x6.4

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 = 304.8t = 6.35t = 6.35
Cross-section, to scaledimensions in mm

Dimensions

Outside diameterD
304.8mm
Thicknesst
6.35mm

Mass and area

Mass per lengthm
46.74kg/m
Cross-sectional areaA
5,954mm²
Outside perimeterP
957.6mm

Strong axis x–x

Moment of inertiaIx
66.3210⁶ mm⁴
Elastic section modulusSx
435.210³ mm³
Plastic section modulusZx
565.710³ mm³
Radius of gyrationrx
105.5mm

Weak axis y–y

Moment of inertiaIy
66.3210⁶ mm⁴
Elastic section modulusSy
435.210³ mm³
Plastic section modulusZy
565.710³ mm³
Radius of gyrationry
105.5mm

Torsion and stability

Torsional constantJ
132,64010³ mm⁴

Equivalents in other standards