Surface Roughness Conversion Chart Tables Engineers Edge
The following charts and tables convert surface finish or roughness between selected industry standard units. Where: Ra = Roughness, average in micrometers microinches RMS = Root Mean Square in microinches CLA = Center Line average in microinches Rt = Roughness, total in microns N = New ISO (Grade) Scale numbers CutOff Length = Length required for sample. Conversion math at bottom μ ...