SPECIAL IRONS FOR WEAR,
HEAT AND CORROSION RESISTANCE
Meehanite Metal castings possess superior resistance to corrosion
as compared with ordinary cast iron, due to the close grained
structure, uniform dispersal of graphite and freedom from porosity.
In addition, Meehanite Metal castings have the advantage of
close control in their manufacture.
Where the service conditions are so severe that it is necessary
to use special material such as stainless steel, none of the
standard Meehanite types, possessing a pearlitic matrix, can
be recommended, and one of the austenitic types should be used.
Three low alloy pearlitic type of Meehanite are available for
corrosion resistance, their main characterisitc being extremely
low sulphur contents. Type CC is intended for resistance to
acids and general chemicals. Type CB3 for resistance against
concentrated sulphuric acid and Type KC for resistance to alkalis.
The austenitic range of irons are high alloy materials which
provide a range of specific corrosion resisting properties,
while certain of the higher alloy types possess particularly
valuable heat-resisting properties. They are austenitic at ambient
temperature due to the presence of such alloys. The carbon can
be present either as flake graphite (the CR series) or as nodular
graphite (the CRS series).