The study of the effect of copper and accompanying elements on properties of steels and their welded joints

摘要

In general it is known that due to exploitation of steel scrap as a part of charge material Cu content increases in manufactured steels. This increase is due to the fact that copper removal has not hitherto been solved by metallurgical processes in manufacture and refining of steels. Simultaneously with copper content also the content of other accompanying elements especially tin or antimony and lead is increased in steel. Their removal is similarly difficult as removal of copper during metallurgical processes.