If you have recently renovated your home or own a business which manufactures goods containing metal parts, chances are you have some scrap metal lying around which could be turned into some serious cash. It is handy to know which metals are the most valuable when it comes to recycling your scrap. Non-ferrous metals such as aluminium, copper and brass are typically worth more at the scrap yard than ferrous metals (those which contain iron). Read on to learn about 7 of the most profitable scrap metals.