TOP 5 HARDEST METALS FOUND ON THE EARTH | Titanium | Stainless steel | Carbon steel | Iron Nickel alloy | Tungsten |

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    A metal is defined as a material that is found on the earth as a mineral or alloy or even as ores. The metals are extracted and then polished, then it becomes a finished product. Most metals are used in the construction of buildings, machines and also vehicles. So a metal needs to be hard to withstand structures and climatic factors. Now, here we are to bring you the ''TOP 5 HARDEST METALS IN THE WORLD''. Now, let's start...

*Tensile strength - resistance against tension applied.
*Yield strength - stress applied for deformation
*Mpa - megapascal

5.Tungsten Carbide

       Tungsten is a metal that is naturally has a very brittle (hard but easily breakable) property. It combines with Carbon to form the Tungsten Carbide. This alloy hardness is so strong which has uses in the tools for cutting blades. Its Yield strength is 300-1000 Mpa. Its Tensile strength is 500-1500 Mpa. It has high impact resistance. Its chemical formula is WC. Its density is 15.63 g/cm^3. Mohs scale for hardness for this alloy is 9 to 9.5. 

4.Tungsten 

    Tungsten olden name is Wolfram. It's a very special metal. It is not used as a natural state. It is used as the best alloy compound with all other metals. It has the highest tensile strength of all other metals. The alloys are stronger than its natural state because this metal is in a free state. Its Tensile strength is 1725 Mpa. Its Yield strength is 750 Mpa. It has low impact resistance. Its chemical formula is W. Its density is 19.28 g/cm^3. Mohs scale for hardness for this metal is 7.5.

3.Stainless steel

   Stainless steel is an alloy of Steel, Chromium and Manganese. This is a corrosion-resistant metal. It is used widely in utensils for the restaurants and home kitchens. It also used for construction purposes. Its Yield strength is 1560 Mpa. Its Tensile strength is 1600 Mpa. It highly impacts resistant. Its density is 7.75 g/cm^3. It's melting point is 1400 - 1450°C. Mohs scale for hardness for this alloy is 5.5-6.3.

2.Steel Iron-Nickel Alloy.

  This alloy is the mixture of the Carbon steel with nickel which increases the yield strength of this alloy compound. It has a higher tensile than carbon steel. Iron and Nickel are found in the meterosites. Its Yield strength is 1420 Mpa. Its Tensile strength is 1460 Mpa. Its density is 8.1 g/cm^3. Mohs scale for hardness for this alloy is 6.1-6.3.

1.Carbon steel

   Carbon steel is a mixture of Iron and the Carbon. It has been widely used in the steel ages. It has higher score rates than any other elements of metals and alloy compounds. Its Yield strength is 1260 Mpa. Its Tensile strength is 580 Mpa. It highly impacts resistance metal in the world. Carbon steel density is 7.85 g/cm^3. It has a melting point of 1,538 °C. Mohs scale for hardness for this alloy is 6.

SIGNIFICANT MENTIONS 

Titanium 

    Titanium is used in aerospace industries, as it is the strongest metal on the earth. Its natural state is weak, so it forms alloy compounds with other elements. It's the only metal burns in pure nitrogen gas without oxygen. Its Yield strength is 275-580 Mpa. Its Tensile strength is 1200 Mpa. Its chemical formula is Ti. Its density is 4.5 g/cm^3. Mohs scale for hardness for this metal is 6.6.

Titanium Aluminide

      Titanium Aluminide is also called as Gamma Titanium Aluminide. It is the mixture of Titanium, Aluminium and Vanadium. It is used in the Turbine blades as it has superior high-temperature performance with low weight. Its Tensile strength is 880 Mpa. Its Yield strength is 800 Mpa. Its chemical formula is TiAl. Its density is 4 g/cm^3. Mohs scale for hardness for this alloy is 6.9. 

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