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Application and properties of iron
Thursday, December 24, 2020 Visit : 215

what is iron metal ?

 

iron is the most toxic metal in the earth after aluminium . iron is the main component of the outer and internal core of the earth and the fourth common element in the crust . The elemental source of iron is in meteorites and other low-oxygen environments But it has a reaction to oxygen and water . fresh iron has a bright gray surface But in normal air, oxygen and moisture from the air cause rust and turn into iron oxide, commonly known as rust. The chemical symbol is iron (fe) and as a chemical element Since its atomic number 26 and its density is 3 kg / m. This metal is highly functional and known in the industry . 95% of people around the world use metallic iron. Iron is also used in the cast iron industry and has many applications for this industry . In order to get a good product from cast iron, some changes must be made in its composition with iron. 

 

 

history of metal iron : 

 

The first iron consumed by humans in prehistoric times was meteorites .

Steelmaking in kilns began in BC.

iron is the tenth abundant element in the world.

the earth 's core is largely made up of iron and iron .

In the world , there are 500 million tons of iron per year Which adds another 300 million tons of recycled iron. 

 

 

types of iron in terms of production :

 

1.Gamma iron : Gamma iron is one of the allotropes of iron Which has been stable in the temperature range of 912 to 1394 ° C. 

2.Iron Delta : Delta iron is one of the iron allotropes whose temperature is stable from 1401 ° C until 1539, until the melting point of iron.

3.Alpha Iron : Alpha iron is one of the allotropes of iron. This allotrope is stable from -273 ° C to 190 ° C. 

4.Beta iron : At 768 ° C, ferromagnetic alpha iron is converted to paramagnetic alpha iron.

 

 

Conversion of iron to steel and the difference between iron and steel : 

 

As carbon increases to molten and refined iron, alloying metals such as vanadium, chromium, titanium, manganese, and nickel are converted to steel. They manufacture iron metals with iron ore . In this way, the stone is melted in large furnaces and then raw iron is produced using it, and in the next stage, steel is produced using raw iron. This makes the difference between raw iron and steel .

 

 

Iron property : 

 

Iron has a smooth surface and a shiny silvery gray But when it comes to oxygen in the air , it comes to red or brown This is called oxide or rust. Pure soft crystals (softer than aluminum) are substantially amplified by the addition of small amounts of impurities such as carbon And by adding appropriate amounts of other metals, steel is produced. Iron is the most abundant metal in meteorites and in the dense metal core on Earth. pure iron is a metal and can be found in pure form at the surface of the earth because it is oxidized to the presence of oxygen and moisture . To get the iron metal, oxygen must be removed from natural ores . iron is the main element of the family of ferrous metals . Iron has low cost and high strength . Its applications include household utensils, cars, washing machines, etc.

 

 

Mechanical properties of iron : 

 

The mechanical properties of iron and its alloys are tested with the help of various tests such as "Bernelli" and "Rockwell" tests or tensile strength tests. The results of these tests are consistent. the size of the iron indicates that the mechanical properties of iron depend on its purity . To the extent that the purest single iron crystals produced for research are softer than aluminum. With the addition of 10 parts per million carbon, its resistance doubles. Its hardness is also increased by increasing the amount of carbon to 20 % . The purest industrially produced iron has a hardness of 30-30 bernel. 

 

 

Iron in the plant : 

 

The iron element is one of the essential substances for the life of plants . If enough iron does not reach the plant, the plant becomes iron deficient (leaf yellow). In this case, the photosynthetic cycle is disrupted . Reduces crop growth and yield.

one of the low consumption elements is iron nutrition which is required for the growth of the plants And it has a constructive role in the green of plants. this element is present in different forms of minerals in the soil .

 

 

signs and symptoms of iron deficiency in plants : 

 

if iron uptake is not well done in the plant ، Chlorophyll decreases in leaves and turns yellow in leaves because iron in the plant is not dynamic. These symbols , first in the young and young leaves , then increases the leaf by increasing the deficiency .Of course , besides the shortage of iron , deficiency of calcium , sulfur and magnesium can also cause the problem .

 

 

effects of iron on the human body : 

 

Iron can be found in meat, whole foods, potatoes, vegetables . The human body absorbs iron faster than the iron in plant products. the essential part of hemoglobin is iron And the red blood cell that carries oxygen from our body is iron. a common problem for human is iron deficiency Which causes anemia. A man needs 7 mg a day and a woman 11 mg. 

    Ahan pouya

    Ahan pouya

    Ahan Pouya with more than a decade of best-selling experience, adheres to professional and ethical principles in the field of selling and buying at inside and outside the borders of Iran, helping you in the steel industry.

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