Steel is an alloy that consists mostly of iron and has a carbon content between 0.2% and 2.1% by weight depending on the grade. Carbon is the most common alloying material for iron but various other alloying elements are used such as manganese chromium vanadium and tungsten. Carbon and other elements act as a hardening agent preventing dislocations in the iron atom crystal lattice from sliding past one another.

5 Tips to Save the Earth

There are many easy things that people can do to help save the earth from further deterioration. All it takes is a little forethought and action. Below are five things that will save our planet.