Round HSS

HSS 274x9.5

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 = 274.3t = 9.52t = 9.52
Cross-section, to scaledimensions in mm

Dimensions

Outside diameterD
274.3mm
Thicknesst
9.52mm

Mass and area

Mass per lengthm
62.16kg/m
Cross-sectional areaA
7,919mm²
Outside perimeterP
861.7mm

Strong axis x–x

Moment of inertiaIx
69.4910⁶ mm⁴
Elastic section modulusSx
506.710³ mm³
Plastic section modulusZx
667.710³ mm³
Radius of gyrationrx
93.67mm

Weak axis y–y

Moment of inertiaIy
69.4910⁶ mm⁴
Elastic section modulusSy
506.710³ mm³
Plastic section modulusZy
667.710³ mm³
Radius of gyrationry
93.67mm

Torsion and stability

Torsional constantJ
138,97710³ mm⁴

Equivalents in other standards