Materials Selection for Process Plants |
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Page 22
CATHODIC PROTECTION Although cathodic protection has been known for over
a century , its use is still relatively new and limited to only a few types of
applications , such as protecting underground piping , buried tanks , condenser
boxes ...
CATHODIC PROTECTION Although cathodic protection has been known for over
a century , its use is still relatively new and limited to only a few types of
applications , such as protecting underground piping , buried tanks , condenser
boxes ...
Page 25
Cathodic protection is extensively used to protect buried pipelines . Corrosion of
subsurface structures is caused by galvanic currents originating between two or
more areas on the same metal surface , by nonuniformities in the environment or
...
Cathodic protection is extensively used to protect buried pipelines . Corrosion of
subsurface structures is caused by galvanic currents originating between two or
more areas on the same metal surface , by nonuniformities in the environment or
...
Page 27
Nickel caustic evaporators are protected by the use of nickel anodes . Indications
are that with austenitic stainless steels cathodic protection can be used to prevent
or minimize crevice corrosion , pitting and intergranular attack . When is ...
Nickel caustic evaporators are protected by the use of nickel anodes . Indications
are that with austenitic stainless steels cathodic protection can be used to prevent
or minimize crevice corrosion , pitting and intergranular attack . When is ...
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abrasion acid addition alkalies alloys aluminum annealed anode applications atmospheres attack austenitic base brasses carbon carbon steel cast iron cause cements cent characteristics chemical resistance chloride cleaning coat combination common COMPANY compounds concentrations conductivity construction containing continuous cooling copper corrosion corrosion resistance cost cracking ductility effect electrical elevated Elongation environments equipment excellent exposure fabrication film given grades gray greater handled hardness heat heat-treatment improved increase industries lead limited lining lower machining material maximum mechanical properties metal method Monel natural nickel nitric normally occurs operating organic oxidizing paint performed physical pipe plastic prevent protection range readily recommended reducing removed rubber salts severe silicon sodium hypochlorite solutions solvents stainless steels stress structure suitable sulfuric acid superior surface Table temperature tensile strength thermal tion titanium Type Typical welding widely wrought zinc