Round HSS

HSS 300x16

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 = 299.7t = 15.88t = 15.88
Cross-section, to scaledimensions in mm

Dimensions

Outside diameterD
299.7mm
Thicknesst
15.88mm

Mass and area

Mass per lengthm
111.2kg/m
Cross-sectional areaA
14,159mm²
Outside perimeterP
941.5mm

Strong axis x–x

Moment of inertiaIx
14310⁶ mm⁴
Elastic section modulusSx
954.410³ mm³
Plastic section modulusZx
1,28110³ mm³
Radius of gyrationrx
100.5mm

Weak axis y–y

Moment of inertiaIy
14310⁶ mm⁴
Elastic section modulusSy
954.410³ mm³
Plastic section modulusZy
1,28110³ mm³
Radius of gyrationry
100.5mm

Torsion and stability

Torsional constantJ
286,04010³ mm⁴

Equivalents in other standards