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Steels & Metals
Transcript of Steels & Metals
Name types of Steels and Metals
What is Steel?
What is Metal
What is alloy?
Steel, is an alloy of iron with varying amounts of carbon content (from 0.5 to 1.5 percent) [source: Merriam-Webster]. Steel, being an alloy and therefore not a pure element, is not technically a metal but a variation on one instead. It's partially composed of a metal, iron, but because it also has non-metal carbon in its chemical make-up, it's not a pure metal.
To create steel, impurities like silica, phosphorous and sulfur must be removed from the iron ore before the carbon is added. Steels biggest advantage over iron is that it is much stronger, which is why it's used in everything from cars to the bridges they drive across. You'll also find steel in skyscrapers, guns, ships, trains and surgical tools.
A metal is a chemical element of various opaque, fusible, ductile and lustrous substances. The elements referred to steel are the same ones you studied when you learned about the periodic table of the elements in school chemistry. Some common metals are titanium, copper and nickel.
An alloy is a mixture of two elements, one of which is a metal. Alloys often have properties that are different to the metals they contain. This makes them more useful than the pure metals alone. For example, alloys are often harder than the metal they contain.
What is Steel good for?
Is Steel Sustainable