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QNK 2Pcs #6 6kg Clay Graphite Crucible for Melting Metal Copper Casting Gold Refining Silver Brass Aluminum Black Foundry Cup

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$39.99

$ 18 .99 $18.99

In Stock
  • 【Dimensions】4.76" Ø x6.06" Ht. (exterior); 3.27"Ø x 5.47" Depth (interior). 2 pcs per set.
  • 【High-Temperature Resistance】The QNK high-density clay graphite crucible features a high thermal conductivity and can withstand temperatures up to 1800 °C (3300 °F).
  • 【Durable Melting Crucible】Our clay graphite crucible is made of premium raw materials with a high-tech formula. Its strong oxidation and corrosion resistance, high thermal shock resistance, and excellent chemical stability make it a reliable metal casting tool.
  • 【Wide Application】Specially designed, this graphite crucible makes an essential vessel for melting and casting precious metals like gold and silver and non-ferrous metals, including copper, aluminum, brass, etc.
  • 【After-Sale】If there is any problem with the clay graphite crucible received, don’t hesitate to contact us. Please note that some edge burrs or nicks do not affect this product's normal use.


Product Description

crucible for melting metal

QNK 6KG Clay Graphite Crucibles for Melting Metal

Our graphite crucibles are high quality melting crucibles. They can be used at temperatures up to 1800 °C (3300 °F) and are suitable for melting and refining precious metals, base metals, and other products.

It is helpful to preheat crucibles to drive of any moisture that may have been pulled out of the atmosphere during manufacturing, storage, shipping, and cooling from the previous firing. And for high value fires (like refining), it is good insurance.

Preheating can be done by placing the crucible on top of the furnace, or on a hot plate, or by putting them in the furnace and raising the temperature slowly.

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clay graphite crucible
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Crucible size guide

Jay Cousland
Reviewed in the United States on March 8, 2025
I bought these for more precise red metallurgy than my open flame tilt reverb furnace. I feel confident I can melt copper without atmosphere and combustion products gassing the heat.(With cover)