The subject matter of this paper was not designed to present an ideal corrosion testing program for plant operating equipment; nor to criticize various types of specimens or sizes or methods of mounting these specimens. It is the primary purpose of this paper to show how a cooperative corrosion testing program can be used to select the proper material for a particular job; and to show how heat treatment, welding and working this material influence its corrosion resistance and guide the equipment manufacturer in his methods of fabrication.
Cooperative corrosion testing between the wood pulping industry and the equipment manufacturer consists essentially of exposing specimens of different materials in a specific corroding medium, and for the purpose of this paper, exposures in pulp digesters and liquor heating tanks will be discussed. However simple the test, the results can be most gratifying from the standpoint of satisfactory equipment service and long...
