Steel is an originally an alloy of iron, with carbon being the main element, up to 2.2% by weight. Apart from carbon, there are other elements within iron which act as hardening agents that prevent the movement of atoms that naturally exist in the iron atom crystals. By altering the amount of various elements, their form in the steel dampens the movement of those atoms which make iron so ductile and so weak, which endows it with qualities such as the hardness, ductility, and tensile strength of the resulting steel. Steel can also be made tougher than pure iron, which can be done by trading away ductility.
Although steel had been produced in furnaces for thousands of years, steel’s use gained momentum extensively after more enhanced production methods were invented in the 17th century. It gave birth to blister steel and crucible steel. Later on, with the invention of the Bessemer method around the mid-19th century, a new era of mass-produced steel started. The quality and applications of steel buildings improved as better materials and design techniques came into existence. Also, the birth of computer aided design software gave it a further boost. You can find the list of future buildings in the world.
Growth Potential of the steel building industry
Today, South Korea has grown its steel base to around 50 million tons and Brazil stands at around 35 million tons. In India, considering a steel consumption of 250 kg per man per year to be a fair level of economic development, the country only produces steel levels of around 50 million tons however, India has progressed a lot since independence producing only 2 million tons at that time.
Employment in the future buildings industry
Today, the European Union employees around 4 million men in this industry. The United States also employees around two million men. This shows how quickly things are shaping up for this industry considering the human resource countries are putting in.