knowledges

The Role Of Molybdenum Products In Iron And Steel Industry

2024-01-05 18:00:06

   Molybdenum is a metal element and is usually used as an additive to alloys and stainless steel. Molybdenum has the advantages of high melting point, boiling point, high temperature strength, anti-friction and corrosion resistance, high heat conductivity, small thermal expansion coefficient and good hardenability. It can enhance the strength, hardness, weldability and toughness of the alloy, as well as its high temperature strength and corrosion resistance. At present, it is widely used in aerospace, weapons, electronics, glass and other fields.

   The application of molybdenum products in iron and steel industry still occupies the most important position. As an alloying element of steel, molybdenum can improve the strength, especially the high temperature strength and toughness of steel; improving the corrosion resistance of steel in acid-base solution and liquid metal; improving the wear resistance and hardenability, weldability and heat resistance of steel. Molybdenum-containing tool steels are twice as efficient as tungsten tools, with excellent properties, low cost and light weight.

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    The roles of molybdenum products in gold, stainless steel and tool steel are as follows:

1. Reducing tempering brittleness;

2. Anti-hydrogen embrittlement;

3. Improving high temperature strength;

4. Resistance to stress cracking caused by sulfide;

5. A hard martensite structure can be obtained by reducing the cooling rate to an appropriate value, which improves the strength, hardness and toughness of large section members.

6. Improve the corrosion resistance of stainless steel, especially chloride pitting.

7. Improve the weldability of high strength low alloy steel.

    Molybdenum is a metal element and is usually used as an additive to alloys and stainless steel. It can enhance the strength, hardness, weldability and toughness of the alloy, as well as its high temperature strength and corrosion resistance. Rich molybdenum resources. Molybdenum, like tungsten, is a refractory rare metal. Molybdenum has a melting point of 2620 C. Because of the strong bonding force between atoms, the strength of molybdenum is very high at room temperature and high temperature. It has small expansion coefficient, high conductivity and good thermal conductivity. It does not react with hydrochloric acid, hydrofluoric acid and alkali solution at room temperature, but only dissolves in nitric acid, aqua regia or concentrated sulfuric acid. It is also quite stable for most liquid metals, non-metallic slags and molten glass. Therefore, molybdenum and its alloys have a wide range of applications and good prospects in metallurgical, agricultural, electrical, chemical, environmental protection and aerospace and other important sectors, and become an important raw material and irreplaceable strategic material in the national economy.


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