RA (Roughness Average) is calculated as a roughness average of a surface measured microscopic peaks and valleys on metals. Raymond Masterson Mechanical Services Ltd can carry out Ra , Rq and Rz values on your finished parts to determine its surface finish.
All Ra , Rq and Rz test results come complete with a report and detailed graph readout to complete documentation packages. The Ra testing of finish parts is an ideal way of confirming that wetted surfaces of the part meet the required standard of finish for pipework installations where the desired surface finish can be 0.5 Ra or better High Purity Systems.
