Sterling Silver Anti-Firescale Casting Grain
- Country of origin : United States
- Weight : 1.097 ounces (31.104g)
$31.89
priced per troy ounce
Description
Get clean castings and save finishing time with this sterling silver anti-firescale grain. It’s a great choice for all types of casting, especially creating items that will be annealed or soldered.
The sterling silver formulation is approximately 90% as hard as traditional sterling silver, and it can be used with acid-based plating solutions.
Sold by the troy ounce (ozt.).
Applications
Any casting method.
Casting and Cleaning
In general, your casting temperature should be 100˚F (37.7˚C) above the liquidus point (somewhat hotter if the castings are intricate). Use a small amount of high-quality flux when melting with an open flame. We recommend Matt’s Casting Flux™. For further cleaning, mechanical means are recommended.
Re-Using
If you plan to re-use sterling silver castings, remove the copper oxides from the surface in a pickling solution or by mechanical means. We recommend a minimum 1:1 ratio of new grain to used silver. All re-used silver should be clean and free of debris.
Composition
The copper used in alloying our sterling silver is 99.9% pure and oxygen-free. Each batch of casting grain is assayed to ensure product that contains 92.5% silver.
All ingredients are kept in an oxygen-reduced atmosphere during the melting and pouring process to ensure optimum deoxidation.
Specifications:
- Specific gravity (g/cm3) : 10.4
- Country of origin : United States
- Form : Casting grain
- Solidus (melt) temperature : 1,761°F (960°C)
- Liquidus (flow) temperature : 1,761°F (961°C)
- Metal type : Sterling silver
Please Note:
• Do not use this grain with any cyanide-based plating solution.
• Due to the manufacturing process of casting grain, the grain will vary in shape and size. If you need perfectly round, consistently-sized spheres please see our granule products.
• For more information regarding the use or composition of this material, please refer to the reference sheet provided below.
• IMPORTANT: Sterling silver is an alloy containing metals that react with chemicals found in air and produce tarnish; high moisture levels, exposure to sunlight and contaminants such as salt water increase this reaction. Take steps to protect your sterling silver by keeping it in airtight packages, use tarnish-resistant products (such as tarnish tabs or strips) that absorb harmful chemicals, and store metals in a cool, dry place. Most tarnish is easily removed by polishing with a mild abrasive or soaking in an anti-tarnish solution.
• We strive to measure quantities ordered as closely as possible; however, due to manufacturing tolerances at the mill, please allow for a ±10% variance when ordering.
• Due to the manufacturing process of casting grain, the grain will vary in shape and size. If you need perfectly round, consistently-sized spheres please see our granule products.
• For more information regarding the use or composition of this material, please refer to the reference sheet provided below.
• IMPORTANT: Sterling silver is an alloy containing metals that react with chemicals found in air and produce tarnish; high moisture levels, exposure to sunlight and contaminants such as salt water increase this reaction. Take steps to protect your sterling silver by keeping it in airtight packages, use tarnish-resistant products (such as tarnish tabs or strips) that absorb harmful chemicals, and store metals in a cool, dry place. Most tarnish is easily removed by polishing with a mild abrasive or soaking in an anti-tarnish solution.
• We strive to measure quantities ordered as closely as possible; however, due to manufacturing tolerances at the mill, please allow for a ±10% variance when ordering.
Catalog page: 2017-2018 Gems and Findings & Display and Packaging Catalog p. 43
