"Nice material: these melting casting molds are mainly made of graphite, the ash content of the 1 kg crucible mould is less than 0.1 percent, which can ensure that the metal purity will not be affected during refining; The 5-in-1 casting mold is with hardness 51 HSD, 89 MPA compression resistance, 48.7 MPa flex resistance, bulk density 1.86 g per cubic cm, making sure that the metal purity will not be affected during refining; Graphite stir rod sticks is 1.75 in density, and 0.2 in granularity". "Product advantages: these graphite casting molds are featured with nice thermal stability and corrosion resistance to strong acid and alkali, fast cooling, nice thermal conductivity properties can highly shorten the casting time and save energy". "Wide range of applications: these graphite ingot molds are suitable for experiments and smelting of non-ferrous metals, including gold, silver, copper, aluminum, and so on, which are designed for lab, test analysis and other purposes; Considering the product size, it is more suitable for small-capacity metal melting projects". "Size information: the 5-in-1 metal refining scrap mold measures about 72 x 57 x 12 mm, and the 1 kg crucible mould is 100 x 50 x 25 mm in outer diameter, and 90 x 40 x 20 mm in inner diameter; Each crucible stir rod is about 12 inches/ 30 cm long, and 5/16 inch/ 0.8 cm in diameter, please check these sizes carefully before purchg". "What you get: this package includes 1 piece of 5-in-1 graphite casting ingot mold, 1 piece of 1 kg graphite ingot crucible mould, and 2 pieces of graphite stir rod sticks, totally 4 pieces in 1 package, convenient combination set to meet your DIY needs for melting casting refining metal jewelry gold silver".

Number of Pieces: 1, 2, 4. Brand: Patelai. Color: Gold,Silver. Material: Aluminum. Date First Available: December 24, 2020. Manufacturer: Patelai. Item Weight: 8.5 ounces. Best Sellers Rank: #15,911 in Arts, Crafts & Sewing. Customer Reviews: 4.1 out of 5 stars 368 ratings 4.1 out of 5 stars. : B08R8WY3H1. Package Dimensions: 13.89 x 2.99 x 2.64 inches.