High temperature resistance

The melting point of graphite is 3850±50°C and the boiling point is 4250°C. Even if burned by ultra-high temperature arc, the weight loss is very small, and the thermal expansion coefficient is also very small. The strength of graphite increases with the increase of temperature. At 2000°C, the strength of graphite doubles.

Electrical and thermal conductivity

The conductivity of graphite is one hundred times higher than that of general non-metallic minerals. The thermal conductivity exceeds that of metal materials such as steel, iron, and lead. Thermal conductivity decreases with increasing temperature, even at extremely high temperatures, graphite acts as an insulator.

Lubricity

The lubricating performance of graphite depends on the size of the graphite flakes. The larger the flakes, the smaller the friction coefficient and the better the lubricating performance.

Chemical stability

Graphite has good chemical stability at room temperature, and is resistant to acid, alkali and organic solvent corrosion.

Plasticity

Graphite is very tough and can be rolled into very thin flakes.

Thermal shock resistance

Graphite can withstand drastic changes in temperature without being damaged when used at high temperatures. When the temperature changes suddenly, the volume of graphite will not change much and no cracks will occur.