Overview
Artificial graphite is a synthetic carbon material produced by high-temperature treatment of carbonaceous precursors like petroleum coke or coal tar pitch. It is known for its high purity, excellent thermal and electrical conductivity, and chemical stability. Unlike natural graphite, artificial graphite can be engineered to meet specific industrial requirements, making it highly versatile. Its production involves processes such as graphitization, which aligns the carbon atoms into a crystalline structure, enhancing its properties.
Physical and Chemical Properties
Artificial graphite exhibits a high melting point (around 3650°C) and boiling point (approximately 4200°C), making it suitable for high-temperature applications. Its density ranges from 1.8 to 2.2 g/cm³, depending on the manufacturing process. The material is chemically inert, resistant to most acids and alkalis, and insoluble in water. Its lubricity and low friction coefficient make it ideal for use in mechanical applications where reduced wear is critical.
Main Applications
Artificial graphite is widely used in the metallurgical industry for electrodes in electric arc furnaces. Its high thermal conductivity and stability make it essential for producing steel and other metals. In the electronics industry, it serves as a key component in lithium-ion batteries and fuel cells. Additionally, it is used in refractories, lubricants, and as a moderator in nuclear reactors due to its ability to absorb neutrons.
Safety and Storage
While artificial graphite is non-toxic, its fine particles can cause respiratory irritation. Proper dust control measures, such as ventilation and personal protective equipment (PPE), are recommended during handling. Storage should be in a dry, cool environment, away from oxidizers to prevent any potential reactions. Containers should be sealed to avoid moisture absorption, which can affect the material's performance.
B2B Procurement Guide
When procuring artificial graphite, prioritize suppliers with certifications like ISO 9001 to ensure quality. Key specifications to consider include purity (typically 99% or higher), particle size, and ash content. Prices vary based on grade and quantity, with bulk purchases often securing discounts. For reference, high-purity grades may cost between $2,000 and $5,000 per ton. Always verify the supplier's ability to meet delivery timelines and provide technical support.
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