DOITOOL 4PCS Round Graphite Ingot Mold, Crucible Mould for Metal Casting Melting Refining Silver Gold Copper Aluminum Brass, 10ml Small Capacity Graphite Crucible for Jewelry Making

Purity Metal Refining: Crafted from premium graphite with less than 0. 1 percent ash content to ensure metal purity remains unaffected during the melting process. These high density graphite ingot molds offer exceptional thermal stability for rapid heating and cooling while maintaining chemical inertness against non-ferrous metals, Compact Jewelry Making Tools: Designed specifically for small projects, each metal casting mold has the following dimensions: 10 ml capacity, 50 mm outer diameter, 40 mm inner diameter, 8 mm inner height (depth, and 13 mm outer height. This round graphite crucible mold is ideal for laboratories and artisans working with metals such as silver, gold, and copper, Extreme Heat Performance: Engineered to withstand temperatures up to 2000 degrees Celsius with superior acid and alkali resistance. The 89 MPa compression and 48. 7 MPa flex resistance provide structural integrity during intense casting sessions, preventing cracking or deformation under thermal shock, Effortless Metal Release: Features natural self-lubricating properties of high purity graphite for smooth ingot removal without residue. This round graphite ingot mold reduces cleaning time and protects the delicate surfaces of castings, thus simplifying your jewelry making and metalworking processes, Enhanced Workflow Efficiency: These four graphite molds can be used for multiple metal casting projects or mass production simultaneously. The excellent thermal conductivity significantly shortens melting time and conserves energy, making it a professional-grade addition to your home workshop or metalwork studio.