Carbon Series

Graphite instant Columnar Recarburizer

Product ID：Carbon Series
Skype：wqecho@outlook.com
Phone: +8618039276615
Tel: +8618039276615
Email: info@dfxingguang.com
Time: 2021-09-11
INQUIRY

Graphite has the following special properties due to its special structure:

1) High temperature resistance: The melting point of graphite is 3850±50°C, and the boiling point is 4250°C. Even if it is burned by ultra-high temperature arc, the weight loss is small and the coefficient of thermal expansion is small. The strength of graphite increases with increasing temperature, and at 2000 ° C, the strength of graphite is doubled.
2) Conductivity and thermal conductivity: The conductivity of graphite is one hundred times higher than that of ordinary
non-metallic minerals. Thermal conductivity exceeds metal materials such as steel, iron, and lead. The thermal conductivity decreases with increasing temperature, and even at very high temperatures, graphite becomes a thermal insulator. Graphite is electrically conductive because each carbon atom in graphite forms only three covalent bonds with other carbon atoms, and each carbon atom still retains one free electron to transport the charge.
3) Lubricity: The lubricating property of graphite depends on the size of the graphite scale. The larger the scale, the smaller
the friction coefficient and the better the lubrication performance.
4)Chemical stability: Graphite has good chemical stability at normal temperature, and is resistant to acid, alkali and organic solvents.
5) Plasticity: Graphite has good toughness and can be rolled into very thin sheets.
6) Thermal shock resistance: When graphite is used at normal temperature, it can withstand severe changes in temperature without damage. When the temperature is abrupt, the volume of graphite does not change much and cracks are not generated.

carbon	Ash	Volatile matter	sulfur	Moisture
90%min	7%max	1%max	0.4%max	0.5%max
96%min	3%max	1%max	0.3%max	0.5%max
98%min	0.5%max	0.5%max	0.3%max	0.5%max
99% min	0.5%max	0.5%max	0.05%max	0.5%max