China OEM Bulk Price Graphite Screw - 5oz gold Graphite Ingot Mold – VET Energy

Material:
Bulk density : 1.85g.cm3 
Resistance : 11-13 unm 
Compressive strength : 90MPa 
Flexural strength : 40 MPa 
Shore hardness : 55 
CET:4.8×10*6/C 
Grain size: 25 um

Application:

Gold,silver,copper,precious metal casting

Useful Tips for using ingot molds:

1: Heat the graphite mold to 250c-500c to avoid any damages in the process and for a higher quality result.
Heating temperatures may vary for different materials.
2: Place scrap into graphite crucible, heat graphite crucible until metal reaches a liquefied state.
Pour molted metal into the pre-heated mold.
3: The graphite molds will last several pours depending on temperatures and types of metal that you are casing.
4: If you run into a releasing problem, you may freeze the mold to allow the ingot to release.
Note: these instructions can be used for all size graphite ingot molds. 
These molds can be used for casting gold, silver, copper, platinum, aluminum, arsenic, iron, tin…
Warning: molds and metals will be extremely hot .proceed with caution.