Precious Metal Crucible Recycling

Key Parameters of Precious Metal Crucibles

Graphite crucible: 3000℃

Ceramic crucible: 1200–1600℃

Iridium crucible: 2450℃

Chemical stability:

Graphite/Zirconia: Inert, gold corrosion-resistant

Clay crucible: Low-temperature stable

Physical properties:

Thermal conductivity: Graphite > Silicon carbide > Ceramic

Lifespan: Graphite crucible (20+ uses), Ceramic (5+ uses), Iridium crucible (Permanent)

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