**7. Conclusion**

In the present study**,** an approach to select the best material from a bunch of materials under different criteria is implemented. Although many researches have been conducted in this field, yet no literature exist which can pin point the method to be used for a certain problem. In the present study with the aim of choosing the best alternative, the criteria are weighted using the cross entropy method. Based on their weights the alternatives are ranked and it was observed that the ranking of alternatives is the same for 4 methods out of the 5. From the present study it can be concluded that the alternative 4 i.e 409M carbon alloy is the best alternative.
