Synthetic Graphite Powder Applications and Value Map Detailed

Ningbo VET Energy Technology Co., Ltd. has detailed the properties and applications of its high-purity synthetic graphite powder, emphasizing that its value is determined by purity grade and particle size. The company distinguishes this engineered material from ground natural graphite, highlighting its synthetic origin and rigorous manufacturing process.

Synthetic graphite powder is produced from petroleum coke and pitch coke, subjected to graphitization above 2800°C and high-temperature halogen purification. This process yields a carbon content exceeding 99.99%, reaching up to 6N (99.9999%). The result is a material with a highly ordered crystal structure and consistent properties, distinct from the variability found in natural graphite.

The company has established a four-tier application map based on purity. Grade 5N–6N is designated for semiconductor manufacturing, serving as a carbon source for silicon carbide (SiC) crystal growth. Grade 4N–5N is used in high-end manufacturing processes, including synthetic diamond production and as a filler for thermal and electrical conductivity. Grade 4N+ is suitable for producing high-purity graphite crucibles and mechanical components like carbon brushes and seals.

The fourth tier, 3N+, is applied in industrial carbon raising for steelmaking and for high-temperature lubrication. Ningbo VET Energy Technology notes that purity grade dictates the primary industry tier, while particle size refines the specific application within that tier. Significant price variations arise from these purity and particle size specifications, reflecting the material's suitability for specialized, high-value uses.

The company aims to guide customers in selecting the appropriate graphite powder for their demanding applications by clarifying these distinctions. The strategic importance of high-purity graphite is underscored by developments such as independent mass production of ultra-high-purity powder for SiC wafer requirements.