Round HSS

HSS 274x4.8

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 = 4.78t = 4.78
Cross-section, to scaledimensions in mm

Dimensions

Outside diameterD
274.3mm
Thicknesst
4.78mm

Mass and area

Mass per lengthm
31.77kg/m
Cross-sectional areaA
4,047mm²
Outside perimeterP
861.7mm

Strong axis x–x

Moment of inertiaIx
36.7610⁶ mm⁴
Elastic section modulusSx
26810³ mm³
Plastic section modulusZx
347.310³ mm³
Radius of gyrationrx
95.3mm

Weak axis y–y

Moment of inertiaIy
36.7610⁶ mm⁴
Elastic section modulusSy
26810³ mm³
Plastic section modulusZy
347.310³ mm³
Radius of gyrationry
95.3mm

Torsion and stability

Torsional constantJ
73,52410³ mm⁴

Equivalents in other standards