Heavy Duty Natural Graphite Crucible 3kg Melting Pot For Foundry Furnace Smelting Workflows With Badass Heat Resistance And Grooved Floors For No Sweat Scrap Metal Removal

Single Heavy Duty Graphite Crucible For Metal Smelting
✔️ 3Kg Molten Metal Capacity Resists Thermal Shock And Oxidation

This single piece melting pot handles your foundry workflows with ease. You get a durable natural graphite vessel built for smelting precious metals. You will load it directly into your gas, vacuum, or electric furnace. The grooved base makes scrap metal removal fast and clean.

✅ 334 ml total volume supports steady batch production runs
✅ Holds up to 6.4 kg of gold or 3.5 kg of refined silver
✅ Accepts standard copper batches up to 3 kg and aluminum up to 0.9 kg
✅ Safe operating limit stays under 1800 °C during active melts
✅ Surface glaze blocks slag erosion and keeps oxidation low
✅ Requires proper preheating steps to guard against thermal cracks

💡 What temperature range works best for natural graphite crucibles in high heat casting?

You need a clear thermal window to keep your melt cycle handy and hassle free. The pure carbon body transfers heat quickly while you work.

- Gas and vacuum rigs handle extreme peaks near 2760 °C reliably
- Electric heating demands tighter control around 1760 °C for stability
- Running active temps below 1800 °C preserves the vessel structural integrity
- Skip sealed carbon kilns entirely since oxygen exposure destroys the graphite matrix✝️