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Manufacturers of hydraulic components and test equipment for the Mobile, Industrial and Agricultural Industries
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Moment of Inertia and Section Modulus

Note: Symbols of SI units, multiples and submultiples are given in parentheses in the right hand column.

  
 
Multiply By To obtain
MOMENT OF INERTIA and SECTION MODULUS
    moment of inertia (kg.m2) 23.73036     pound-foot2
 
    moment of inertia (kg.m2) 3,417.171     pound-inch2
 
    moment of inertia (lb.ft2) 0.04214011     kilogram-metre2 (kg.m2)
 
    moment of inertia (lb.inch2) 0.0002926397     kilogram-metre2 (kg.m2)
 
    moment of section (foot4) 0.008630975     metre4 (m4)
 
    moment of section (inch4) 41.62314     centimetre4
 
    moment of section (metre4) 115.8618     foot4
 
    moment of section (centimetre4) 0.02402510     inch4
 
    section modulus (foot3) 0.02831685     metre3 (m3)
    section modulus (inch3) 0.00001638706     metre3 (m3)
 
    section modulus (metre3) 35.31466     foot3
    section modulus (metre3) 61,023.76     inch3

* Where an asterisk is shown, the figure is exact

  
 
 
Webster Instruments(Sep 2010)