Round HSS

HSS 274x13

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.

Cross-section, to scaledimensions in mm

Dimensions

Outside diameterD: 274.3mm
Thicknesst: 12.7mm

Mass and area

Mass per lengthm: 81.93kg/m
Cross-sectional areaA: 10,437mm²
Outside perimeterP: 861.7mm

Strong axis x–x

Moment of inertiaIx: 89.510⁶ mm⁴
Elastic section modulusSx: 652.510³ mm³
Plastic section modulusZx: 869.810³ mm³
Radius of gyrationrx: 92.6mm

Weak axis y–y

Moment of inertiaIy: 89.510⁶ mm⁴
Elastic section modulusSy: 652.510³ mm³
Plastic section modulusZy: 869.810³ mm³
Radius of gyrationry: 92.6mm

Torsion and stability

Torsional constantJ: 178,99010³ mm⁴