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Molded Graphite
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Size Specifications: Customizable dimensions based on client drawings or requirements, including diameter, thickness, and length—suitable for a wide range of industrial applications.
Purity Level: Available in various purity grades from 80% to 99.99%, tailored to meet performance needs such as high temperature resistance, conductivity, and lubrication.
Particle Size (Granularity): Graphite powder can be customized with particle sizes ranging from a few microns to several hundred microns, ideal for lubricants, conductive materials, and additives.
Expansion Ratio (for expandable graphite): Adjustable expansion ratios such as 100–300 times, depending on application requirements—commonly used in flame retardants, gaskets, and sealing materials.
Introduction
Molded graphite has outstanding performances in mechanical strength, abrasion resistance, density, hardness and electrical conductivity and these performances can be further improved by impregnating resin or metal.
Molded graphite features good electrical conductivity, high temperature resistance, corrosion resistance, high purity, self-lubrication, thermal shock resistance and easy precision machining, and is widely used in the fields of continuous casting, hard alloy and electronic die sintering, electric spark, mechanical seal, etc.
Molded Graphite Specification
| Henan Xinyao graphite brand number physical and chemical properties reference table | |||||||||||
| Brand | Density | Resistivity | Thermal expansion coefficient 20-600℃ |
Shore hardness |
Flexural strength |
Compressive strength |
Ash content |
Porosity | Purification | Graininess | Application |
| (g/cm3) | μΩm | 10-6/℃ | HSD≥ | MPa≥ | MPa≥ | ≤PPM | ≤% | ≤PPM | ≤μm | ||
| XY-2 | 1.6 | 13-16 | 4.6 | 35 | 28 | 50 | 1000 | 18 | 40 | Ordinary casting, mechanical seal, electric brush | |
| XY-3 | 1.72 | ≤12 | 4.7 | 40 | 32 | 60 | 1000 | 15 | 40 | Carbide sintering, general casting, sintering molds, seals | |
| XY-4 | 1.8 | ≤12 | 5 | 50 | 40 | 80 | 800 | 12 | 50 | 40 | Carbide sintering, metal continuous casting, diamond sintering crucible sealing |
| XY-5 | 1.86 | ≤10 | 5.85 | 55 | 50 | 98 | 800 | 11 | 50 | 40 | Carbide sintering, metal continuous casting, diamond sintering, crucible |
Molded Graphite Molding Technology
The molding method is generally used to produce small-sized cold-pressed graphite or finely structured products. The principle is to fill a certain amount of paste into a mold of the required shape and size, and then apply pressure from the top or bottom. Sometimes, apply pressure from both directions to compress the paste into shape in the mold. The pressed semi-finished product is then demolded, cooled, inspected, and stacked.
There are both vertical and horizontal molding machines. Molding method generally can only press one product at a time, so it has a relatively low production efficiency. However, it can produce high-precision products that cannot be made by other technologies. Moreover, the production efficiency can be improved through simultaneous pressing of multiple molds and automated production lines.

Product classification
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