12- Foundry Clay Graphite Crucibles Cup Furnace Torch Melting Casting Refining for Copper Brass Gold Silver Aluminum - Black

Product Description Graphite Foundry Crucibles are made from a combination of graphite and clay, and are recommended for melting your precious, or non-precious metals and can handle large batches of material. Rated to withstand temperatures up to < 3272°F (1800°C),Apparent Porosity <30% ,Cold Crushing Strength Mpa8.55 SPECIFICATIONS * Material : graphite and clay * Outside size :6.3"(D)x 7"(H)(160*180MM) * Inside size :6.3" (H)x 5.1"(D)(160*130MM) * Bottom outside dimension :4.7" * Thickness : 0.6"(15MM) * Cold Crushing Strength Mpa8.55 * Refractoriness < 3272°F (1800°C) * Apparent Porosity <30% * AL2O3: 26% * SIC : 23% * SIO2 :6%,C:45% Package Includes: - 1 x Graphite Crucibles Frequently Asked Questions: Q :Could this hold a quart of molten aluminum?and how many pounds of aluminum can this hold? A : Yes .this hold 9 pounds of aluminum Q :Can you melt steel in this? A : No. Q :What are the physical dimensions A : Outside:7.1"(H)x 6.3"(W),Inside:6.3" (H)x 5.1"(W),Bottom outside dimension :4.7",Thickness : 0.6" Q : what is the actual high temperature i can expect with this item? A : its maximum rated temp is 3272°F (1800°C)