Round HSS

HSS 406x13

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 = 406.4t = 12.7t = 12.7
Cross-section, to scaledimensions in mm

Dimensions

Outside diameterD
406.4mm
Thicknesst
12.7mm

Mass and area

Mass per lengthm
123.3kg/m
Cross-sectional areaA
15,708mm²
Outside perimeterP
1,277mm

Strong axis x–x

Moment of inertiaIx
304.710⁶ mm⁴
Elastic section modulusSx
1,49910³ mm³
Plastic section modulusZx
1,96910³ mm³
Radius of gyrationrx
139.3mm

Weak axis y–y

Moment of inertiaIy
304.710⁶ mm⁴
Elastic section modulusSy
1,49910³ mm³
Plastic section modulusZy
1,96910³ mm³
Radius of gyrationry
139.3mm

Torsion and stability

Torsional constantJ
609,31510³ mm⁴

Equivalents in other standards