Study and comparison of mechanical properties between scrap recycled steel and ship recycled steel.

Abstract

Steel is the most recycled metal in the world and it is impossible to imagine life without steel. It must be recycled maintaining its proper quality and contributing to economy. Scrap recycling and ship recycling are two processes for all of the steel recycling. Which recycling process is more sustainable in terms of quality is to be found out. Quality of steel refers to its mechanical properties. So, there has to be a logical comparison between these two types of recycled steel. It will indicate which type of steel is more suitable for different applications of steel. When the data of both recycled is available, it is easy to determine the suitable steel to meet the desired properties (i.e. yield strength, torsional strength) of steel. However, these data must be reliable based on proper sample, precious scientific experiment and obviously outright comparison between scrap recycled steel and ship recycled steel. It is very significant to execute the experiments with accuracy and precision as it has large scale practical implication. Moreover, different operations must be conducted very carefully in order to manufacture appropriate specimen from the collected sample of steel from the industries. In this paper, our sample size is not so much large. As a result, it is recommended to collect large number of samples from different industries in case of further study on this field. Only ensuring the quality is not enough, economic viability also must be checked. In this paper, economic feasibility for recommended steel is also considered. Some field of steel application one particular mechanical property (i.e., yield strength) is desired to be maximum and if we know which types of recycled steel possess that particular mechanical property better and use it on that field, desired quality will be fulfilled. The paper is based on more experimental and recommending mass practical application.