One of the industries that may strongly be influenced by the globalization process isthe steel industry. The present study sought to investigate the effects of globalization on this industry in Iran.In general to investigate the consequences of entering the World Trade Organization on Ahwaz Pipe Mills Company several indicators and methods have been used. In this way, by using the concept of comparative advantage, competitive advantage and support coefficients analysis the consequences of entering the WTO organization on pipe factories (1, 3, 4) and cover plants (1, 2 and 3) have been discussed. The results indicate the high Comparative advantage of the pipe factories (1, 3, 4) and cover plants (1, 2 and 3) both. While the pipe factories (1, 3 and 4) has the 2Iranian Journal of Trade Studies competitive cost advantage less than that of the cover Plants (1, 2 and 3). Also there is less support for the cover plants sector both in nominal and effective terms.