 Also, some of the steel which was rendered radioactive in the Mexican event was used to make legs for 1400 tables.In the case of some high-value scrap metals it is possible to decontaminate the material, but this is best done long before the metal goes to a scrap yard.In the case of a caesium source being melted in an electric arc furnace used for steel scrap, it is more likely that the caesium will contaminate the fly ash or dust from the furnace, while radium is likely to stay in the ash or slag.