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Argen Jewelry :: Grain Refiner

Grain Refiner

 Grained.jpg     ugrained.jpg

          Argen's 18kt grained Yellow Alloy                               18kt yellow alloy ungrained 

The research team at Argen has been using Iridium and Ruthenium to refine the grain structure of its precious metal based alloys for many years. Iridium is used as the grain refiner for Argen's custom line of designer gold alloys (top left). Compare the Structural differences to an 18 kt yellow alloy without Iridium (top right).

The benefits of the grain refiner include, but are not limited to:

  • Less porosity
  • Less cracking
  • Better surface finish
  • Better tensile strength and ductility

Golds
10kt, 14kt, and 18kt. 
The white color rivals platinum at a fraction of the cost. Unlike other nickel alloys, the material is resistant to fire cracking.
Constituents
Gold, Nickel, Copper, Silver, Iridium
Our Gold is five nine's pure and used from recycled or reclaimed gold.
Nickel is electrlytic grade, not carbonyl so there is no chance of carbon residue.
Copper and Silver are oxygen free grade. Reducing amount of residual gas reduces porosity.
Zinc is ultra pure with zero tolerance for lead, bismuth, and other impurities that may embrittle the alloy.
Iridium is added to grain refine the alloy, reducing porosity and the tendency for fire cracking. Grain refining also improves the strength, ductility, and surface finish of the alloy. The alloy is formulated under a protective atmosphere to eliminate hard spots in your casting. This practices is more difficult than the traditional method of melting under a flux cover, but it produces a cleaner alloy with no oxide residue. We also have a 14kt Nicke-Free Palladium product. The alloy is whiter than most other Palladium whites and can be cast in normal Platinum investment.