Meaning of Steel
What is Steel:
Steel is a combination of iron and up to 2.11% carbon by mass. Steel is an alloy, that is, the mixture or chemical synthesis of a metal, in this case iron (Fe), and other elements, in this case carbon.
The word steel derives from the Latin voice aciarium whose root ac indicates something sharp or pointed.
Acero has been used as a synonym for sword due to its etymological origin as, for example, in the chorus of the Mexican national anthem where “steel ready” refers to preparing the sword.
The expression “made of steel” is used when one wants to indicate that something is hard, resistant and impenetrable like steel, for example, having nerves of steel or temper of steel indicates a person who does not lose his cool in an extreme situation.
See also Impenetrability.
The expression Iron Curtain or Iron Curtain indicates the ideological and political barrier that existed after World War II between the West and the Soviet bloc.
Steel is the product of a chemical synthesis of metals extracted from the earth's crust. By combining ferrous metals (based on iron) with other elements, steel is obtained that, compared to iron in its natural state, is a better conductor of heat and electricity and more resistant.
See also Synthesize.
The properties of steel depend on its chemical composition and the type of treatment applied. The most important characteristics that all steels share are:
- Hardness: it is difficult to penetrate.
- Strength: it is capable of resisting twisting, compression, traction and bending without deforming.
- Malleability: withstands forces without breaking.
- Ductility: allows it to be deformed at high temperatures in the form of conductive wires and wires or in thin sheets.
The types of treatment that steels are subjected to to enhance some of their properties are:
- Heat treatment: application of heat.
- Mechanical treatment: introduction in hot and cold environments.
- Thermochemical treatment: use of chemicals and heat.
- Surface treatment: coatings of other materials.
The types of steels are classified according to their composition. Some of them are:
- Ordinary steel or carbon steel: it is one that is composed only of iron and carbon.
- Special steel: it combines iron, carbon and other elements such as aluminum, manganese among others.
- Cast steel or cast iron: It is an alloy that includes silicon or nickel used in tubes and valves, pumps and automotive parts thanks to its resistance to corrosion of liquids with high pH (neutral and alkaline). It is classified, in turn, into gray cast iron and nodular cast iron.
- Stainless steel: the composition of this steel includes chromium which makes it resistant to corrosion and oxidation. It also has a more attractive appearance since it is polished.
- High speed steel: This type of alloy contains tungsten used to make high speed cutting tools used in factories.