Iron is the most used metal in our lives. Iron is indeed an incredibly useful substance and we use it abundantly because it extremely strong than copper or wood and less brittle when compared to strong. Iron can also be easily shaped into various form if it is heated properly, allowing us to make tools as our needs and unlike the wood, it can handle very high temperature.
The unique property of iron is that you can magnetize it and make useful in the making of electric motors and generators. The most interesting thing is that we will not have to worried about the shortage of this material because it occupy 5 percent of the earth’s crust and some ores contains about 70 percent of iron. In addition, those ores can easily be extracted from earth.
Let’s compare iron with another element, aluminum. Refining aluminum needs huge amount electricity and to shape it, you have to either extrude it or cast it. Iron is, however, much easier to use and also harder than aluminum. The substance has been very useful to people for a long time, while aluminum is not effective as iron and it is not abundant on earth.
The only real problem about Iron is rust which is controllable. One can easily control it by galvanizing, chrome plating or painting. To control it, you must be sure that iron is not in contact of air because air moisture is the reason why rust forms on the iron.
The day will come when we will be very advanced in terms of technology and iron will be completely replaced by plastics, aluminum, things like glass fibers and carbon, but it is not these days. These days we use iron because economic equations tell us that iron inexpensive iron has many advantages over those expensive alternatives.