Factory Supply High Purity Graphite Crucibles for Matal Casting
A graphite crucible is a container made from graphite material, which is utilized for holding and heating materials at high temperatures. Graphite is an ideal choice for crucibles due to its ability to withstand extreme heat and chemical resistance. These crucibles come in various sizes and shapes to accommodate different applications.
2. Applications of Graphite Crucibles
Graphite crucibles find extensive use in a wide range of industries and processes, including:
2.1 Metallurgy
In the metallurgical industry, graphite crucibles are commonly employed for melting and casting metals such as gold, silver, copper, and iron. The crucibles maintain a high level of thermal stability, allowing efficient metal processing and alloy production.
2.2 Jewelry Making
Artisans and jewelers use graphite crucibles to melt precious metals and create intricate jewelry designs. The excellent heat conductivity and resistance to chemical reactions make graphite crucibles an indispensable tool in jewelry casting.
2.3 Chemical Laboratories
Yiguan Graphite crucibles are also utilized in chemical laboratories for conducting experiments and synthesizing compounds at high temperatures. These crucibles provide a controlled environment for reactions and ensure the purity of the substances being processed.
2.4 Glass and Ceramics Manufacturing
The glass and ceramics industries rely on graphite crucibles for the production of glass melts and ceramic materials. Graphite’s non-reactive nature prevents contamination and allows for the creation of high-quality products.
| Technical Parameters | YG-4 | YG-5 | YG-6 | YG-7 | YG-8 |
| Density (g/cm³) | 1.8 | 1.85 | 1.9 | 1.82 | 1.9 |
| Electrical Resistivity (μΩ.m) | 8~11 | 8~10 | 8~9 | 11~13 | 11~13 |
| Thermal conductivity 100℃ (W/m.k) | 121.1 | 139.2 | 140 | 85~110 | 85~110 |
| Coefficient of Thermal Expansion (indoor temperature-600℃) 10-6℃ | 5.46 | 4.8 | 4.5 | 5.7 | 5.85 |
| Shore hardness (HSD) | 42 | 48 | 53 | 65 | 70 |
| Flexural Strength (Mpa) | 38 | 48 | 55 | 51 | 60 |
| COMPRESSION STRENGTH (Mpa) | 65 | 85 | 95 | 115 | 135 |
| Elasticity modulus (Gpa) | 9 | 11.8 | 12 | 11 | 12 |
| Porosity % | 17 | 13 | 11 | 12 | 11 |
| Ash Content (PPM) | 500 | 500 | 500 | 500 | 500 |
| Granularity (μm) | 13~15 | 13~15 | 8~10 | 8~10 | 8~10 |
| Usage | common use | common use | Continuous casting, Sintering, High temperature metallurgy | EDM, Photovoltaic | EDM, Photovoltaic, Glass |




In addition to mechanical processing, we also provide post-processing services such as graphitzation and purification,at preferential prices,to provide customers with perfect product services.
We have a complete after-sales team to conduct after-sales tracking and provide after-sales services for our products.We believe that customer feedback and suggestions will enable Yiguan Graphite continue to grow.
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