China Small Sizes Blank of Graphite Block Rod Chinese Direct Factory

Small Sizes Blank of Graphite Block and Rod Chinese Direct Factory

1. It can be used as refractory material for metallurgical industry.
2. Good electrical conductivity, which can be widely used in electronic industry, such as graphite electrode and brush.
3. It can be used as wear-resistant material or lubricant, and graphite can be used as wear-resistant lubricating material to achieve lubricating effect.
4. It can be used as anti-corrosion material: widely used in petroleum, chemical industry, hydrometallurgical and other sectors.
5. Insulation of protective materials and high temperature resistance.
6. The graphite rod is most commonly used for heating elements of high-temperature vacuum furnace resistance, induction bearers, structural elements and charging rods.metal electrolytic anode.

Graphite rod is most frequently used in the heating element of high temperature vacuum furnace, and the highest temperature of the graphite rod can reach 3000ºC.

Graphite block and rod properties

1) High temperature resistant type: Graphite has a melting point of 3850±50°C and a boiling point of 4250°C. Even if it is burned by an ultra-high
temperature electric arc, the loss of weight is small, and the coefficient of thermal expansion is also small. The graphite strength increases with increasing temperature, and at 2000°C, the graphite strength is doubled.
2) Conductivity and thermal conductivity: The electrical conductivity of graphite is 100 times higher than that of non-metallic minerals. Thermal
conductivity exceeds metal materials such as steel, iron, and lead. Thermal conductivity decreases with increasing temperature, and even at
extremely high temperatures, graphite becomes a thermal insulator.
3) Lubricity: The smaller the friction coefficient, the better the lubrication performance.
4) Chemical stability: Graphite has good chemical stability at room temperature and is resistant to acid, alkali and organic solvents.
5) Thermal shock resistance: When graphite is used at room temperature, it can withstand dramatic changes in temperature without damage.
When the temperature changes abruptly, the volume of graphite does not change much and cracks do not occur.

TypeMSL80MSS80MSL85MSS85Grain Size (μm)25252525Bulk Density (≥g/cm3)1.81.81.851.85Compressive Strength (≥MPa)60607070Flexural Strength(≥MPa)30303535Porosity(≤%)21211818Specific Resistance(≤μΩm)12121212Ash Content(≤%)0.080.080.080.08Shore Hardness48485050

Small Sizes Blank of Graphite Block and Rod Chinese direct factory