Non-ferrous metal definition
Non-ferrous metals, narrow non-ferrous metals, also known as non-ferrous metals, are all metals except iron, manganese, chromium collectively. Non-ferrous metals in general also include colored alloys. Non-ferrous alloys are based on a non-ferrous metal substrate (usually greater than 50%), adding one or several other elements and the composition of the alloy. Non-ferrous metals generally refer to the removal of all metals other than iron (sometimes also manganese and chromium) and iron-based alloys. Non-ferrous metals can be classified into heavy metals such as copper, lead and zinc, light metals such as aluminum and magnesium, precious metals such as gold, silver and platinum, and rare metals such as tungsten, molybdenum, germanium, lithium, lanthanum and uranium.