The Benefits of Using graphite electrode price

Graphite Elecrode &#; rely on market demand & raw mateial supply

Graphite electrodes are mainly made of petroleum coke, needle coke and coal pitch through calcining, batching, kneading, forming, baking, graphitizing and machining. Graphite electrode is a conductor which releases electric energy in the form of arc in the furnace to heat and melt the charge. The following are the main factors that affect the price fluctuation of graphite electrodes.

&#;The Increasing Demand of High-Quality Steel :

This is one of the main factors propelling the market growth of graphite electrodes. The rapid development of steel industries such as construction, automobile, infrastructure, aerospace and national defense has led to an increase in steel demand and production.

&#;Electric Arc Furnace is the Trend of the Times :

Affected by environmental protection and high production flexibility, the steel-making process in developing countries is changing from blast furnace and ladle furnace to electric arc furnace (EAF). Graphite electrodes are the main energy source for electric furnace steel consumption, and as much as 70% graphite electrodes are used in electric arc furnace steel making. The rapid development of electric furnace forces the production capacity of graphite electrode to be increased.

&#;Graphite Electrodes are Consumables :

The use period of graphite electrode is generally about two weeks. However, the production cycle of graphite electrodes is generally 4&#;5 months. During this use, the production capacity of graphite electrode is expected to be reduced due to national policies and the heating season.

&#;High-Grade Needle Coke Short in Supply :

Needle coke is a key raw material for the production of graphite electrodes. It is a calcined petroleum coke (CPC) which accounts for about 70% of the input cost of graphite electrode production. The price increase caused by the limited number of needle coke imports is the main reason for the direct increase in the price of graphite electrodes. Meanwhile, needle coke is also used in the production of electrode materials for lithium batteries and aerospace industries. These changes in supply and demand make the price of graphite electrode is inevitable.

&#;Trade Wars Between the World's Major Economies :

This have led to a sharp decline in China's steel exports, and forcing other countries to increase production capacity. On the other hand, it has also led to an increase in the export volume of graphite electrodes in China. In addition, the United States raised tariffs on Chinese imports, which greatly reduced the price advantage of Chinese graphite electrodes.

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Which Factors Affecting the Price of Graphite Electrodes ?

Graphite Electrode Price Index

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Graphite Electrode Market Analysis

Graphite Electrode Market Growth Trends 

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[Latest] Global Graphite Electrode Market Size/Share Worth

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Graphite Electrode Price - Factory Price

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Graphite Electrodes Latest Prices and Market Trends

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Graphite electrodes price and graphite electrode market

Graphite has many advantages that have made it the material most widely used for EDM electrodes.

• It is easy to machine.
• It is very resistant to thermal shock.
• It has a low coefficient of thermal expansion (3 times lower than copper) which guarantees stability of electrode geometry during electro discharge machining.
• It is available in large blocks.
• It does not melt, but goes directly from the solid state to the gaseous at 3,400°C,
• which reduces wear.
• Its density is 5 times lower than that of copper, which results in lighter electrodes.
• It provides a higher metal removal rate than copper with less wear.
• It has the unique characteristic that the wear ratio tends to decrease as the peak current increases.

More About Graphite
Graphite used for EDM machining is an isotropic material with a grain size ranging from a few microns to about 20 microns. In the 's, improvements made by graphite manufacturers (isotropic properties, consistent quality, large size billets) combined with the emergence of EDM machines equipped with iso-plus generators, allowed graphite to become the most commonly used material for EDM machining electrodes.

Three separate groups of graphite can be defined:
1. Large grain graphite (about 20 µm) with low densities (1.76 g/cm3)
2. Fine grain graphite (~10 µm) of high density (1.82 g/cm3)
3. Very fine grain graphite (~4 µm) with densities greater than 1.86 g/dm3

Larger grained graphite is used for machining in roughing modes while fine grain graphites produce the best surface finishes for finishing operations. As graphite has become more affordable, EDM machining shops will often inventory two or even three types or grades of graphite. A less expensive large grained graphite for the roughing operation; followed by a finer grained graphite for finishing or a combination of both roughing and finishing performance; and possibly an expensive very fine grained graphite for fine finishing and precision operations.

Why Graphite?
Graphite has several advantages over other materials. It is resistant to thermal shock. It is the only material in which mechanical properties increase with temperature. It has a low CTE for geometrical stability. It is easily machined. It does not melt but sublimes at very high temperature (3,400ºC), and finally, its density is lower (five times less than copper) which means lighter electrodes. Graphite removes material better than copper or copper-tungsten while wearing slower. The wear rate tends to diminish as the discharge increases, unlike copper, whose wear increases at higher currents. Therefore, graphite is suited for the machining of large electrodes since working with a high current intensity provides decreased roughing time.

Although graphite is prone to abnormal discharge, this can be eliminated through quality flushing, and lowering the intensity of discharge during negative polarity machining. However, as a result of this tradeoff, machining tungsten carbides is more difficult than with copper-tungsten electrodes. Also, since graphite is a ceramic, it is sensitive to mechanical shock, and consequently must be handled and machined with care.

Comparing Graphite Grades
It is not advisable to compare a grade of graphite to another just by looking at physical properties without also performance testing the graphite in actual EDM operations. However, the following is a list of physical properties of graphite that exhibit some effect on performance in EDM operations.

graphite electrode export prices india fob dollars per tonne

Graphite Electrode Market Analysis

Graphite Electrode Market Growth Trends 

Graphite Electrode Price

[Latest] Global Graphite Electrode Market Size/Share Worth

Graphite Electrodes at Best Price in India

Graphite Electrodes Prices

Graphite Electrode Price - Factory Price

graphite electrode price per ton

graphite electrode price chart

graphite electrode demand

graphite electrode uses

Graphite Electrodes Latest Prices and Market Trends

Graphite Electrode Market Size Share Growth and Forecast

Graphite electrodes price and graphite electrode market

Graphite has many advantages that have made it the material most widely used for EDM electrodes.

• It is easy to machine.
• It is very resistant to thermal shock.
• It has a low coefficient of thermal expansion (3 times lower than copper) which guarantees stability of electrode geometry during electro discharge machining.
• It is available in large blocks.
• It does not melt, but goes directly from the solid state to the gaseous at 3,400°C,
• which reduces wear.
• Its density is 5 times lower than that of copper, which results in lighter electrodes.
• It provides a higher metal removal rate than copper with less wear.
• It has the unique characteristic that the wear ratio tends to decrease as the peak current increases.

More About Graphite
Graphite used for EDM machining is an isotropic material with a grain size ranging from a few microns to about 20 microns. In the 's, improvements made by graphite manufacturers (isotropic properties, consistent quality, large size billets) combined with the emergence of EDM machines equipped with iso-plus generators, allowed graphite to become the most commonly used material for EDM machining electrodes.

Three separate groups of graphite can be defined:
1. Large grain graphite (about 20 µm) with low densities (1.76 g/cm3)
2. Fine grain graphite (~10 µm) of high density (1.82 g/cm3)
3. Very fine grain graphite (~4 µm) with densities greater than 1.86 g/dm3

Larger grained graphite is used for machining in roughing modes while fine grain graphites produce the best surface finishes for finishing operations. As graphite has become more affordable, EDM machining shops will often inventory two or even three types or grades of graphite. A less expensive large grained graphite for the roughing operation; followed by a finer grained graphite for finishing or a combination of both roughing and finishing performance; and possibly an expensive very fine grained graphite for fine finishing and precision operations.

Why Graphite?
Graphite has several advantages over other materials. It is resistant to thermal shock. It is the only material in which mechanical properties increase with temperature. It has a low CTE for geometrical stability. It is easily machined. It does not melt but sublimes at very high temperature (3,400ºC), and finally, its density is lower (five times less than copper) which means lighter electrodes. Graphite removes material better than copper or copper-tungsten while wearing slower. The wear rate tends to diminish as the discharge increases, unlike copper, whose wear increases at higher currents. Therefore, graphite is suited for the machining of large electrodes since working with a high current intensity provides decreased roughing time.

Although graphite is prone to abnormal discharge, this can be eliminated through quality flushing, and lowering the intensity of discharge during negative polarity machining. However, as a result of this tradeoff, machining tungsten carbides is more difficult than with copper-tungsten electrodes. Also, since graphite is a ceramic, it is sensitive to mechanical shock, and consequently must be handled and machined with care.

Comparing Graphite Grades
It is not advisable to compare a grade of graphite to another just by looking at physical properties without also performance testing the graphite in actual EDM operations. However, the following is a list of physical properties of graphite that exhibit some effect on performance in EDM operations.

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• apparent density
• average grain size
• electrical resistivity
• flexural strength
• hardness