Round HSS

HSS 127x13

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 = 127t = 12.7t = 12.7
Cross-section, to scaledimensions in mm

Dimensions

Outside diameterD
127mm
Thicknesst
12.7mm

Mass and area

Mass per lengthm
35.8kg/m
Cross-sectional areaA
4,560mm²
Outside perimeterP
399mm

Strong axis x–x

Moment of inertiaIx
7.53910⁶ mm⁴
Elastic section modulusSx
118.710³ mm³
Plastic section modulusZx
166.610³ mm³
Radius of gyrationrx
40.66mm

Weak axis y–y

Moment of inertiaIy
7.53910⁶ mm⁴
Elastic section modulusSy
118.710³ mm³
Plastic section modulusZy
166.610³ mm³
Radius of gyrationry
40.66mm

Torsion and stability

Torsional constantJ
15,07910³ mm⁴

Equivalents in other standards