alloys are probably cheaper to make and stonger then an element or a simple metal. Alloys are easier to make. It is difficult to find a simple metal.
There are many various types of Metals and metal alloys. Magnesium is one of the lightest metals. Aluminum alloys is next. Steel alloys and Lead and Gold are the heaviest metals.
alloys
Alloys are mixtures of metals, such as sterling silver, which is an alloy of silver and copper.
Many alloys are made by melting metals and mixing them together in carefully measured amounts.
Alloys contain metals but also nonmetals.
titanium
Because alloys often have better properties than their parent metals. Stronger, rust resistant etc
An alloy is mixture of two or more metals. Alloys are normally harder than the metals they contain. Examples of alloys include brass, steel and bronze.
Mix of different metals and carbon and/or silicum in alloys
Plutonium can form many alloys with other metals.
Metals and alloys are used as conductors: copper, aluminium, silver.
Alloys are sometimes more useful than pure metals because alloys tend to be stronger though not necessarily. Pure metals tend to be softer than alloys, which are a mix of two or more metals, and therefore get dented, scratched, or broken more easily. Gold used in jewelry is a good example. Metal alloys have different structural and behavioral characteristics than pure metals. Alloying a metal also gives it a different appearance. In some cases alloys may result in a lighter metal without sacrificing other necessary characteristics. They may also be more cost effective.