Overview
Graphite plates and rods are industrial materials crafted from high-purity graphite, a crystalline form of carbon. They are valued for their exceptional thermal and electrical conductivity, chemical resistance, and mechanical stability. These properties make them indispensable in high-temperature and corrosive environments. Graphite plates and rods are manufactured through processes like extrusion or isostatic pressing, ensuring uniform density and performance. Their versatility allows them to be customized into various shapes and sizes, catering to specific industrial needs.
Physical and Chemical Properties
Graphite plates and rods exhibit a unique combination of physical and chemical properties. They have a high melting point of 3650°C, making them suitable for extreme heat applications. Their thermal conductivity rivals that of metals, while their electrical conductivity is comparable to semiconductors. Chemically, graphite is inert and resistant to most acids, alkalis, and organic solvents. This inertness, combined with low friction, makes graphite plates and rods ideal for use in corrosive environments and as lubricants. Their density ranges from 1.5 to 1.9 g/cm³, depending on the manufacturing process.
Main Applications
Graphite plates and rods are widely used in industries such as metallurgy, electronics, and chemicals. In metallurgy, they serve as electrodes in electric arc furnaces and as crucibles for melting metals. The electronics industry utilizes them for heat sinks and electrical contacts due to their conductivity. In chemical processing, graphite plates and rods are employed in heat exchangers and gaskets, where their corrosion resistance is critical. They are also used in aerospace and nuclear industries for their ability to withstand extreme conditions.
Safety and Storage
While graphite is non-toxic, precautions should be taken to avoid inhaling graphite dust, which can irritate the respiratory system. Proper handling is essential to prevent breakage, as graphite can be brittle. Storage conditions should include a dry, well-ventilated area away from oxidizing agents. Graphite plates and rods should be kept in their original packaging or covered to protect them from moisture and physical damage. Proper storage ensures longevity and maintains their performance characteristics.
B2B Procurement Guide
When procuring graphite plates and rods, it is crucial to specify purity levels, dimensions, and intended applications. High-purity graphite (99.9% or higher) is required for sensitive applications like semiconductors, while lower purity may suffice for general industrial use. Suppliers should provide certifications and test reports to verify material properties. Lead times and minimum order quantities vary, so early communication with suppliers is recommended. Prices range from $20 to $200 per kg, influenced by purity, size, and customization requirements.
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