What is the strongest metal on earth?
|Q:What is the strongest metal on earth?|
A:There is quite a debate regarding which metal should be crowned as the strongest metal in the world. The controversy is due to the fact that based upon the various physical properties (discussed later in this article), no single metal can be considered as scoring a perfect ten when all parameters are considered. If one metal ranks at the top in density, another one takes the cake when it comes to tensile strength and so on. However, after much consideration, the following metals have been nominated as being qualifying on most of the "strength" grounds.
Titanium: Although lower in density than tungsten and osmium, titanium is known for its strength, high strength:weight ratio, high ductility, resistance to corrosion and a decently high melting point (exceeding 1650¡ãC or 3000¡ãF). Titanium has a relatively lower ability to conduct electricity and heat and has paramagnetic properties. It is silvery in color and commercial grades of titanium have a tensile strength of 63,000 psi.
Tungsten: Steel gray in color, this metal is most often found in a compound form as it exists in combination with various other chemical elements. Tungsten has a very high density and is 19.3 times denser than water and 71% more dense than lead. It also slightly surpasses uranium in density. Since mostly found with minor impurities, Tungsten tends to be somewhat brittle, making it a difficult candidate for metalwork.
Osmium: Osmium is a transition metal belonging to the platinum family and is considered as one of the densest elements to occur in Nature. It is two times more dense than lead and is marginally denser than iridium. Its density is 22.59 g/cm3. It is bluish gray in color, though sometimes blackish gray variants also exist, very hard and brittle in nature with an extremely high melting point. This makes it a difficult metal for processing. Osmium is highly lustrous and gives off a soft sheen even at night.