Molybdenum is a metal element commonly used as an additive in alloys and stainless steel. Molybdenum melting point, high boiling point, high temperature strength, corrosion resistance, heat conductivity, small coefficient of thermal expansion, hardenability and other advantages. It can enhance the strength, hardness, weldability and toughness of the alloy. 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 main position. As an alloying element of steel, molybdenum can improve the strength of steel, especially the strength and toughness at high temperature. To improve the corrosion resistance of steel in acid-base solution and liquid metal; Improve the wear resistance of steel and improve the hardenability, weldability and heat resistance. Molybdenum-containing tool steels are twice as efficient as tungsten tools, with excellent performance, low cost and light weight.
The functions of molybdenum products in gold steel, stainless steel, tool steel are as follows:
1. Reduce temper brittleness;
2. Hydrogen embrittlement resistance;
3. Improve high temperature strength;
4. Resistance to stress cracking caused by sulfide;
5. Reduce the cooling rate to an appropriate value to obtain a kind of hard martensite structure, thus improving the strength, hardness and toughness of the large-section members;
6. Improve the corrosion resistance of stainless steel, especially the chloride pitting corrosion;
7. Improve the welding performance of high-strength low-alloy steel.
Molybdenum is a metal element commonly used as an additive in alloys and stainless steel. It can enhance the strength, hardness, weldability and toughness of the alloy. Abundant molybdenum resources. Molybdenum, like tungsten, is a refractory rare metal. The melting point of molybdenum is 2620℃. Due to the strong bond 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 royalium or concentrated sulfuric acid. Therefore, molybdenum and its alloy in metallurgy, agriculture, electrical, chemical, environmental protection and aerospace and other important sectors have a wide range of applications and good prospects, become an important raw material and irreplaceable strategic material in the national economy.
