Iron the density of iron, its properties

Iron man has a long history. Metal ores are pretty popular. The content of iron in the earth's crust is 4.1%, i.e., in this parameter it is on the second place among metals and fourth among all elements. There is therefore nothing surprising in the fact that even before our era (second Millennium) was found the method of its production and further processing. Further, the technology improved, new methods of producing iron, and gradually, the metal began to occupy the leading position in material production.

The Value of iron is not limited to the field of material production. It as a trace mineral is part of hemoglobin-the red color of our blood is due to the presence of iron. Iron is essential for normal growth and development of plants, it takes part in oxidation processes and enters into the composition of protoplasm.

Any substance, including iron, has its own characteristics. If on the scales to put one kilogram of this metal and one kilogram of feathers, the weight of them will be the same, only the amount they will borrow is absolutely not comparable. The fact that the density of iron is much more than fluff. As the density understand the mass contained in unit volume. Each substance has its own density. Water, for example, a thousand kilograms/cubic meter, ice-nine-hundred kilograms/cubic meter.

The density is Defined as the ratio of mass to volume. Density is influenced by several factors. So, it depends on the temperature. For many substances there is the following dependence: as temperature decreases, density increases, with increasing-decreasing. However, this rule has several exceptions, one of which – water. On the contrary, as temperature decreases, its density decreases.

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Due to this exception on the Ground there is life. Ice is lighter than water, and it rests on the surface. Otherwise, it would drop to the bottom, lying there and not melted. And eventually all the seas and oceans would be completely frozen. It turns out that the notion of density of a substance allows you to make a very interesting conclusion about the possibility of life on Earth.

The Density depends on the chemical composition of substances. The greatest effect on the density of iron have silicon and carbon. They lower the density of pure iron, which 7,800 kilograms/cubic meter at room temperature. At the same time, on the carbon content affects the properties of iron. In fact, iron is used in alloys, especially carbon – in a variety of steels and cast iron.

Cast iron generally contains more than 2.14% of carbon, the carbon content in steel-lower (0.8 to 1%). The density of iron in these cases will be different. Solid iron has a density of 7000-7200 kilograms/cubic meter at normal temperature, the steel under the same conditions has a density of 7500-7600 kilograms/cubic meter. Thus the steel density is between cast iron and iron.

According to its characteristics, cast iron is fragile: if it hit, it hurts. Steel get, converting the iron in the basic oxygen furnace. In this processing, the carbon content is reduced, it is said, burns. The properties of the steel differs from cast iron. It can be forged, to make the hire. Additional properties of the steel acquires due to the additives that give it desired characteristics-strength, flexibility, hardness.

In the above material are considered such a thing as the density of iron. Describes the features of changes in the density of some substances under various external conditions. Consider some of the properties of iron and its value in material production, and also as a trace element in the body.