Round HSS

HSS 274x8.0

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 = 7.95t = 7.95
Cross-section, to scaledimensions in mm

Dimensions

Outside diameterD
274.3mm
Thicknesst
7.95mm

Mass and area

Mass per lengthm
52.22kg/m
Cross-sectional areaA
6,652mm²
Outside perimeterP
861.7mm

Strong axis x–x

Moment of inertiaIx
59.0410⁶ mm⁴
Elastic section modulusSx
430.510³ mm³
Plastic section modulusZx
564.210³ mm³
Radius of gyrationrx
94.21mm

Weak axis y–y

Moment of inertiaIy
59.0410⁶ mm⁴
Elastic section modulusSy
430.510³ mm³
Plastic section modulusZy
564.210³ mm³
Radius of gyrationry
94.21mm

Torsion and stability

Torsional constantJ
118,08710³ mm⁴

Equivalents in other standards