Generally for leaded alloys tin and lead and for lead free alloys tin, silver and copper. According to the requirement, silver, copper , antimon or cadmium can be added as well.
As of 1 July 2006, according to RoHS directives transition is done both in Japan and EU. In US only in California transition started as of 1 January 2007. 1 June 2009 was the date for Turkey to start obeying RoHS directives.
