Type of our 99.95% Iridium foil hot rolling and cold rolling Iridium is a platinum group metal with atomic number 77. Ir is very hard and brittle metal with silvery color. Iridium has great corrosion resistant even at high temperature as 2000C. Iridium is an ideal material for tip of spark plugs and has been used to make crucible for artificial crystals manufacturing Material of our 99.95% Iridium foil hot rolling and cold rolling The iridium sheet can be processed by hot rolling and cold rolling. We mainly purchase raw materail from JM,Anglo ,linco and JINCHUAN. to confirm the purity we supply.