Posted by Joe Lorenzino [216.197.153.67] on Thursday, January 02, 2014 at 23:05:45 :
In Reply to: cast iron brake pistions posted by mannyc [173.77.217.68] on Thursday, January 02, 2014 at 19:51:19 :
As said below, stainless on stainless tends to gall rather quickly, especially the easily available, but non-hardening 300 series. ie: 304, 316, 309
We often make hydraulic cylinder parts out of "ductile iron", which is available in cast rods of various diameters. This is used because of its good "linear wear" resistance, high strength, ease of machining, and lower cost than bronze. It should be available from specialty metal suppliers, or any full service hydraulic repair shop.
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