Round HSS

HSS 305x9.5

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 = 9.52t = 9.52
Cross-section, to scaledimensions in mm

Dimensions

Outside diameterD
304.8mm
Thicknesst
9.52mm

Mass and area

Mass per lengthm
69.33kg/m
Cross-sectional areaA
8,831mm²
Outside perimeterP
957.6mm

Strong axis x–x

Moment of inertiaIx
96.3510⁶ mm⁴
Elastic section modulusSx
632.210³ mm³
Plastic section modulusZx
830.310³ mm³
Radius of gyrationrx
104.5mm

Weak axis y–y

Moment of inertiaIy
96.3510⁶ mm⁴
Elastic section modulusSy
632.210³ mm³
Plastic section modulusZy
830.310³ mm³
Radius of gyrationry
104.5mm

Torsion and stability

Torsional constantJ
192,69910³ mm⁴

Equivalents in other standards