Features: Nice characteristics: You can use our purity graphite crucible moulds to create many kinds of handicrafts with your parents, friends, lovers, children, colleagues, classmates and others who like to DIY handicrafts, which will strengthen your relationships and enhance your hands-on skills. Kindly notice: Pure graphite crucible can not be heated by carbon furnace or charcoal kiln, it will be oxidized and broken. Pure graphite will start to oxidize at 752 degrees Fahrenheit/ 400 degrees Celsius. The withstand temperatures can be 3200 degrees Fahrenheit if you use air electric furnace and 5000 degrees Fahrenheit if you use vacuum or gas protection furnace. Specifications: Main material: graphite Color: as the picture shows Outside dimension: approx. 100 x 50 x 25 mm/ 3.94 x 1.97 x 0.98 inch Inside dimension: approx. 90 x 40 x 20 mm/ 3.54 x 1.57 x 0.79 inch Package includes: 4 x Graphite ingot moulds Note: Manual measurement, please allow slight errors on size. The colors may exist slight difference due to different screens.

"Various applications: this graphite casting mould has a wide range of applications, it is suitable for experiments and melting of non-ferrous metals, such as gold, silver, metal, aluminum, copper, brass, zinc and so on, and it also can be applied for experimental analysis after graphite crucibles are melted into non-ferrous metals, as the ingot mould and other purposes". "Good performance: our ingot crucible mould has good thermal conductivity, which can greatly shorten the melting time and save energy, and can withstand a temperature of 2000 degrees Celsius, good acid and impact resistance, good alkali resistance and corrosion resistance, 89 MPA compressive strength and 48.7 MPa flex resistance". "Size detail: the outside dimension of our silver gold ingot mould is approx. 100 x 50 x 25 mm/ 3.94 x 1.97 x 0.98 inch and the inner size is approx. 90 x 40 x 20 mm/ 3.54 x 1.57 x 0.79 inch, and the capacity is about 1 kg gold or 500 g silver, proper size can meet your daily needs". "Quality material: our casting ingot crucible moulds are mainly made of graphite material, almost no ash content to ensure that the metal refining process does not affect the purity of the metal, which are durable, sturdy, reliable and reusable, not easy to break or deform, you can use them for a long time". "Package comes with: you will receive 4 pieces of graphite ingot moulds in the package, the sufficient quantities for you can meet your DIY requirements in daily life".

Number of Pieces: 4. Shape: Rectangular. Brand: Patelai. Color: Gold,Silver. Material: Aluminum. Date First Available: March 30, 2021. Manufacturer: Patelai. Item Weight: 14.4 ounces. Best Sellers Rank: #43,940 in Arts, Crafts & Sewing. Customer Reviews: 4.5 out of 5 stars 149 ratings 4.5 out of 5 stars. : B091CNCRSK. Package Dimensions: 5.43 x 5.2 x 2.56 inches.