Survey of Corrosion Cost in Japan

摘要

This article was translated from Japanese report published in Zairyo-to-Kankyo, 50, 490-512 (2001), aiming to prevalence for overseas usage. This was the second report published by Japan Society of Corrosion Engineering. The first report on the cost of corrosion in Japan was published in 1977. The report estimated that the corrosion loss in Japan which did not include indirect loss was 1-2 percent of Gross National Product (GNP) at that time. This report showed the cost of corrosion in 1997. These two estimations were conducted in same way. The costs were compared with each other. In addition to this, a preliminary analysis by the Input/Output method was performed to estimate the total cost of corrosion including the direct and indirect costs. The overall costs estimated by the Uhlig and Hoar methods for 1997 were 3,938 billion yen and 5,258 billion yen, respectively, which were equivalent to 0.77% and 1.02% of the GNP of Japan at that time. The total cost including the direct and indirect costs, which were estimated by the Input/Output analysis, was more 2 times larger than the direct cost estimated by the Uhlig method.