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High Purity Graphite Crucible, 1kg/2kg/3kg Graphite Crucible(99.97% Carbon Purity), for Melting Gold Silver Copper, Jewelry Making Furnace Casting Tools in Kuwait High Purity Graphite Crucible, 1kg/2kg/3kg Graphite Crucible(99.97% Carbon Purity), for Melting Gold Silver Copper, Jewelry Making Furnace Casting Tools in Kuwait High Purity Graphite Crucible, 1kg/2kg/3kg Graphite Crucible(99.97% Carbon Purity), for Melting Gold Silver Copper, Jewelry Making Furnace Casting Tools in Kuwait High Purity Graphite Crucible, 1kg/2kg/3kg Graphite Crucible(99.97% Carbon Purity), for Melting Gold Silver Copper, Jewelry Making Furnace Casting Tools in Kuwait High Purity Graphite Crucible, 1kg/2kg/3kg Graphite Crucible(99.97% Carbon Purity), for Melting Gold Silver Copper, Jewelry Making Furnace Casting Tools in Kuwait High Purity Graphite Crucible, 1kg/2kg/3kg Graphite Crucible(99.97% Carbon Purity), for Melting Gold Silver Copper, Jewelry Making Furnace Casting Tools in Kuwait High Purity Graphite Crucible, 1kg/2kg/3kg Graphite Crucible(99.97% Carbon Purity), for Melting Gold Silver Copper, Jewelry Making Furnace Casting Tools in Kuwait High Purity Graphite Crucible, 1kg/2kg/3kg Graphite Crucible(99.97% Carbon Purity), for Melting Gold Silver Copper, Jewelry Making Furnace Casting Tools in Kuwait

3kg

KWD 11
Brand
CongGongGo
Weight
454 g
Color3KG
– 1 +

Special Features

  • 💪【High Purity Graphite Crucible 】SIZE -- Options: 1kg, 2kg, 3kg. 1PCS graphite crucible. ideal for ​large-scale jewelry casting, ​bullion refining, & ​non-ferrous metal smelting.
  • ​✅【Industrial-Grade Grooved Design】Deeper grooves​ ensure ​secure furnace extraction​ & ​zero metal adhesion​ – save precious alloys & eliminate material waste during gold/silver/copper casting.
  • 🔥【Ultra-High Purity Natural Graphite】​​99.9% Refractory-Grade Carbon​ delivers ​superior thermal conductivity​ (reduces melting time) + ​low thermal expansion​ (prevents cracks at 1800°C/3272°F).
  • 🛡️【Glazed Anti-Corrosion Surface】​​Specialized ceramic coating​ resists ​slag erosion​ & ​metal oxidation, extending crucible lifespan by ​3X​ vs standard graphite molds.
  • ​🌡️【Extreme-Temperature Resilience】​​Vacuum/Gas Furnace Ready: Withstands ​5000°F (2760°C)​​ | ​Electric Kiln Use: Stable at ​3200°F (1760°C)​​ – perfect for ​platinum melting​ & ​high-alloy casting.

Description

Double-Ring Graphite Crucible (1kg/2kg/3kg):​​
✅ ​1kg Capacity​ → 0.6kg 24K Gold / 1.1kg Fine Silver / 0.8kg Copper (Precision Small Jewelry)
✅ ​2kg Capacity​ → 1.6kg 24K Gold / 2.2kg Fine Silver / 1.2kg Platinum (K-Gold & Ingot Production)
✅ ​3kg Capacity​ → 2.8kg 24K Gold / 3.5kg Fine Silver / 3kg Brass (Industrial Precious Metal Refining)
🔥 ​Double Anti-Stick Grooves × 1800°C Corrosion Resistance × 200+ Furnace Cycles Lifespan!​

Core Product Features​：
​Industrial Grooved Design​：
Deep-tread grooves prevent metal adhesion + enable one-handed furnace extraction.
→ ​Reduce precious metal waste by 95%​​ vs smooth crucibles.

Grade Thermal Performance​：
-Withstands ​5000°F (2760°C)​​ in vacuum/gas furnaces.

​Ceramic-Glazed Longevity​：
Proprietary-coating provides ​3X lifespan​ vs standard crucibles.
→ ​200+ melts​ guaranteed with proper maintenance.

​Precision Metallurgy Ready​：
99.97% carbon purity → Zero contamination in gold refining.
Boron nitride-ready surface for copper/platinum alloys.

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