Introduction of non-ferrous metals
Nonferrous metal [Metallurgy] non-ferrous metal, also known as non-ferrous metal in the narrow sense, is a collective name for all metals except iron, manganese and chromium. Non-ferrous metals in a broad sense also include non-ferrous alloys.
Non-ferrous alloy is an alloy composed of a non-ferrous metal (usually greater than 50%) and adding one or several other elements. Non-ferrous metals generally refer to all metals except iron (and sometimes manganese and chromium) and iron-based alloys. Non-ferrous metals can be divided into heavy metals (such as copper, lead, zinc), light metals (such as aluminum, magnesium), precious metals (such as gold, silver, platinum) and rare metals (such as tungsten, molybdenum, germanium, lithium, lanthanum, uranium).