list of metal and alloy classifications. The metals listed within each classification group have no strong
tendency to produce galvanic corrosion and are relatively safe to use in contact with each other. The
coupling of metals from a different group and the increased distance the groups are from each other will
generally result in galvanic or accelerated corrosion of the metal higher on the list. The farther apart the
metals are listed in the table, the greater a galvanic tendency will be. A galvanic tendency is determined
by measuring the potential electrochemical difference between any two metals.
Figure 5-6. Galvanic corrosion
5-5
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