Corrosion-Resistant Graphite Crucible for Metling of precious metal
It is used for gold, silver and other jewelry casting and recasting.
- Well thermal stability : according to the using conditions of graphite crucible snap heat and cold;
- Well corrosion resistance, impact resistance performance, to ensure the reliability of product quality;
- Well resistance to strong acid, strong alkali;
- Good heat transfer performance of graphite crucible: for greatly shorten the melting time and save energy;
- In high-temperature using process, it got small thermal expansion coefficient;
- Technical Index
-
Type |
MSS80 |
MSS80 |
MSS85 |
Grain Size (μm) |
25 |
25 |
25 |
Bulk Density (≥g/cm3) |
1.80 |
1.85 |
1.90 |
Compressive Strength (≥MPa) |
60 |
70 |
80 |
Flexural Strength(≥MPa) |
30 |
35 |
40 |
Porosity(≤%) |
17 |
14 |
10 |
Specific Resistance(≤μΩm) |
12 |
12 |
12 |
Ash Content(≤%) |
0.06 |
0.05 |
0.03 |
Shore Hardness |
50 |
55 |
60 |