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T h e   S t u d y   o f   C o r r o s i o n    17


                                            Utilities ($48B) 34%





                                                                  Infrastructure
                                                                   ($23B) 16%
 Summary of Estimated Direct Cost of Corrosion for Industry Sectors Analyzed in the 2001 Study (continued)

                         Transportation
                          ($22B) 22%
                                                               Government
                                                               ($15B) 15%
                                    Production &
                               Manufacturing ($18B) 13%



                      FIGURE 1.2  Corrosion costs breakdown across industrial sectors.


                      A breakdown of these costs by individual sectors is shown in Fig. 1.2.
                      Since  not  all  economic  sectors  were  examined,  the  sum  of  the
                      estimated costs for the analyzed sectors did not represent the total
                      cost of corrosion for the entire U.S. economy.
                         By estimating the percentage of U.S. GNP for the sectors for which
                      corrosion costs were determined and by extrapolating the figures to
                      the entire U.S. economy, a total cost of corrosion of $276 billion was
                      estimated. This value shows that the impact of corrosion is approxi-
                      mately 3.1 percent of GNP. This cost is considered to be a conserva-
                      tive  estimate  since  only  well-documented  costs  were  used  in  the
                      study. The indirect cost of corrosion was conservatively estimated to
                      be equal to the direct cost, giving a total direct plus indirect cost of
                      $552 billion or 6 percent of the GNP.


                 References
                        1.  Trethewey KR, Chamberlain J. Corrosion for Science and Engineering. 2nd ed.
                         Burnt Mill, UK: Longman Scientific & Technical, 1995.
                        2.  Paparazzo E. Surfaces—lost and found. Nature Materials 2003; 2: 351–3.
                        3.  Cushman AS, Gardner HA. The Corrosion and Preservation of Iron and Steel. New
                         York: McGraw-Hill, 1910.
                        4.  LaQue FL. What can management expect from a corrosion engineer? Materials
                         Performance 1985; 25: 82–4.
                        5.  Uhlig HH. The cost of corrosion in the United States. Chemical and Engineering
                         News 1949; 27: 2764.
 TABLE 1.2              6.  Koch GH, Brongers MPH, Thompson NG, Virmani YP, Payer JH. Corrosion
                         Costs  and  Preventive  Strategies  in  the  United  States.  FHWA-RD-01-156.
                         Springfield, Va.: National Technical Information Service, 2001.


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