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Molybdenum Products for Industrial Usages


 
PRLog - Feb. 12, 2014 - IRVINE, Calif. -- For decades, molybdenum was confused with lead ore and graphite and was seldom used for industrial purposes. Moly (Mo as chemical symbol) was discovered by a Swedish chemist, Carl Wilhelm Scheele in 1778, but it took another century before it was used as a heating element for furnaces. Today, various molybdenum products are being employed in major industries.

The word molybdenum comes from the Greek word, 'molybdos' which means lead-like. It is a lustrous grey-colored metal which has a very high melting temperature of 4730゜F, so much higher than iron which has a melting temperature of 2795゜F.

1.      Physical properties of molybdenum products

Molybdenum naturally occurs on the earth's surface, but not in huge quantities. It can be found in different ores, but orescontaining the mineral molybdenite (MoS2) are the ones to make molybdenum products. Mo is extracted from ores through a series of crushing, grinding and flotation operations. Manufacturing molybdenum products starts with the recovery of molybdenum, which can be a long process.

Moly has the lowest coefficient of thermal expansion and one of the highest melting points of all the elements. Its density is known to be 25% more than that of iron. These properties make molybdenum products highly resistant to heat and corrosion. These products keep their shapes even when they are exposed to extremely high temperatures.

2.      Major producers of molybdenum products

Molybdenum comes from two different types of mines - the primary mines and the by-product mines. Most molybdenum mines are found in Canada, China, USA, Peru, Chile and Mexico. According to the US Geological Survey, China currently has the largest reserves, followed by the US and Chile. The countries where these mines are found are also the major producers of molybdenum products.

Recovery of molybdenum from primary mines is labor-intensive, as it takes more than 2,000 pounds of ore in order to recover about 4-6 pounds of molybdenum. Molybdenum can also be found in copper ore, although in very moderate amounts. However, the price of molybdenum in the market today is directly influenced by the supply and demand of copper, as 70% of the world supply of molybdenum is recovered from copper deposits.

3.      Usages of molybdenum products

The largest molybdenum consumertoday is the steel industry, which consumes more than 80% of the total molybdenum supply in the world. Moly improves the heat-resistance of all kinds of steels. A majority of molybdenum products are used for metallurgical purposes such as:

1. 1-4% molybdenum is added to stainless steel to improve its corrosion resistance.

2. About 30% molybdenum is added to super alloys that are used in turbine wheels and jet engines.

3. 1% molybdenum is added to constructional alloy steels that are used for trucks, mining equipment and machine tools.

4. High strength low alloy steels (HSLA) with minimum1% molybdenum are used in gas pipelines and oil transmission.

5. High temperature steels with 1% molybdenum are used in power generation equipment and heat exchangers and other operations that require extremely high temperature.

These are just some of the metallurgical uses of molybdenum products. Molybdenum also has chemicallyadopted as catalysts, glass melting electrodes, lubricants, pigments and for inhibiting corrosion of aluminum, copper, cast iron, brass and steel.

By Stanford Materials  http://stanfordmaterials.com/

Stanford Materials Corporation is a worldwide supplier of various oxides, metals, alloys, advanced ceramic materials, and minerals. It was established in 1994 to supply high quality rare earth products to our customers in the research and development fields. To meet increasing demands for rare earth products and other materials, Stanford Materials now carries a variety of materials to serve not only our customers in research and development but also manufacturers in the ceramic, metallurgy and electronic industries. Stanford Materials carries both technical grade materials for industries as well as high purity chemicals (up to 99.99999%) for research institutes.

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Stanford Materials Corporation
9494078904
***@stanfordmaterial.com

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Source:Stanford Materials Corporation
City/Town:Irvine - California - United States
Industry:Industrial, Manufacturing
Tags:molybdenum, molybdenum metal, molybdenum alloys
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