316 on 316 often causes galling when rubbed against each other. Make the sleeve out of non-galling stainless such as ILLIUM 8 or Waukesha 88. Both are food grade materials. Use the 316 on the shaft.
John Reinbold
"Chance favors the prepared mind"
www.stainlessfoundry.com
Postive displacement pump users on the food industry use a special non-galling stainless steel material because the pump rotor and housing often bump and rub during operation. They use a material called ILLIUM 8 for the rotor because it is easier to replace than the whole housing. When they...
The process you described almost sounds like "Kolsterizing". I have heard of its use in pump housings to help prevent wear. Because it is performed at low temps, you can do it after finish machining. The treatment penetrates to a depth of .004" which is not very deep. Case carburizing of...
Corrosion resistance of 300 series SS castings can be enhanced by proper heat treatment. Maybe your part did not receive the proper heat treatment and the other parts did get the proper heat treatment.
Rubbing two pieces of stainless steel together can cause galling, especially at high speeds. One part (the sacrificial one) can be make of softer non-galling material. This material is often used in positive displacement pumps as material for the rotors. 2 materials come to mind as...
