Class 60 grey iron?
Class 60 grey iron?
(OP)
I'm looking at what grey iron to use in an engine sleeve application. Class 60 appears to have most of the psi tensile and wear factors needed. Does anyone have a better idea?
Thanks,
Binder
Thanks,
Binder






RE: Class 60 grey iron?
RE: Class 60 grey iron?
RE: Class 60 grey iron?
Thin section cast iron sleeves quite often display a microstrucure that is undercooled, type D graphite which will be associated with ferrite unless pearlite promoting elements are increased (Cu, or Sn). The undercooling can be an indication of the risk of carbides in the microstructure. The Type D graphite with associated ferrite
will limit the tensile strength and class 50 would not be likely. Some of these sleeves are centifugally cast in steel molds (rapid cooling) and some are sand cast, slower cooling and so the end result would be different.
I'm not a design engineer so I'm not sure why you want to go to class 60.