Round HSS

HSS 300x8.6

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: 299.7mm
Thicknesst: 8.56mm

Mass and area

Mass per lengthm: 61.46kg/m
Cross-sectional areaA: 7,829mm²
Outside perimeterP: 941.5mm

Strong axis x–x

Moment of inertiaIx: 83.0310⁶ mm⁴
Elastic section modulusSx: 554.110³ mm³
Plastic section modulusZx: 725.810³ mm³
Radius of gyrationrx: 103mm

Weak axis y–y

Moment of inertiaIy: 83.0310⁶ mm⁴
Elastic section modulusSy: 554.110³ mm³
Plastic section modulusZy: 725.810³ mm³
Radius of gyrationry: 103mm

Torsion and stability

Torsional constantJ: 166,05210³ mm⁴