Round HSS

HSS 254x16

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 = 254t = 15.88t = 15.88
Cross-section, to scaledimensions in mm

Dimensions

Outside diameterD
254mm
Thicknesst
15.88mm

Mass and area

Mass per lengthm
93.25kg/m
Cross-sectional areaA
11,879mm²
Outside perimeterP
798mm

Strong axis x–x

Moment of inertiaIx
84.5710⁶ mm⁴
Elastic section modulusSx
665.910³ mm³
Plastic section modulusZx
901.710³ mm³
Radius of gyrationrx
84.38mm

Weak axis y–y

Moment of inertiaIy
84.5710⁶ mm⁴
Elastic section modulusSy
665.910³ mm³
Plastic section modulusZy
901.710³ mm³
Radius of gyrationry
84.38mm

Torsion and stability

Torsional constantJ
169,14310³ mm⁴

Equivalents in other standards