SPECIAL IRONS FOR WEAR, HEAT AND CORROSION RESISTANCE

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).

For more information on this subject why not email us and ask for a copy of the brochure:
"MEEHANITE Special Irons for Wear, Heat and Corrosion Resisting Applications"
 
   

Corrosion Resisting Types
(from separately cast test bars of 25mm diameter)

MEEHANITE
TYPE
Tensile Strength N/mm² Brinell Hardness HB30
Flake
Graphite
Pearlitic
CC

CB3

KC
300

300

250
190/230

200/250

170/210
Flake
Graphite
Austenitic
CR1

to

CR9
Conforming to

ISO, ASTM, DIN

and

British Standards
Refer to

Tables 1 and 2

on next page

for more detailed data
Nodular
Graphite
Austenitic
CRS1

to

CRS13


Go to next page to see more details on the characteristics and applications of the CR and CRS corrosion resisting types in an austenitic matrix


 


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Copyright 2008 By Meehanite Worldwide Corporation (MWC). All Rights Reserved.