1. The high temperature resistant graphite has a melting point of 3850℃±50℃ and a boiling point of 4250℃. Even if burned by an ultra-high arc, the loss of quality is very small, and the coefficient of linear expansion is also very small. The strength of graphite increases with the increase of temperature. At 2000℃, the strength of graphite is doubled for converter magnesia carbon bricks.

2. Electrical and thermal conductivity. The conductivity of graphite is twice as high as that of general non-metallic minerals. The thermal conductivity exceeds that of metal materials such as steel, iron, and lead. The thermal conductivity decreases as the temperature increases, and even at extremely high temperatures, graphite acts as an insulator.

3. Lubricity. The lubricity of graphite depends on the size of the graphite flakes. The larger the flakes, the smaller the friction coefficient and the better the lubrication performance.

4. Chemical stability, graphite has good chemical stability at room temperature, and is resistant to acids, alkalis, and organic solvents.

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

6. 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.

The binding agent plays the role of connecting the matrix and the particles. In the actual production and use process, the matrix and the binding agent system are the two weak links of the magnesia carbon brick.