Karatium sterling

Abstract

A sterling silver jewelry alloy that has approximately 0.01-7.50% fine gold content that has similar color huge and shine and characteristics of sterling silver. Karatium Sterling is a unique alloy blend that will provide the traditional sterling silver jewelry designer with a special metal that is slightly more tarnish resistant than traditional sterling silver. The alloy has the following compositions by weight; Gold 0.01.00-7.50%, Silver 92.50-97.50%, Copper 0.01-7.00%. In addition to its nice silver color it also polishes easier with a better luster and provides jewelry craftsmen a slightly higher cost silver alloy that responds well to the jewelry manufacturing process (e.g., casting, milling, soldering, tooling, stone setting, polishing and plating).

1 . A sterling silver metal alloy of 0.01-7.50% fine gold that has a white (silver) color and resist tarnishing and the discoloration of skin 
   
   
       2 . Has all of the same jewelry workability as traditional sterling silver. 
   
   
       3 . Consist of: 
     
       
         
               
               
               
               
             
                   
               
                 Element 
                 Mill alloy (%) 
                 Casting alloy (%) 
                 Patent range (%) 
               
                   
               
                   
               
               
               
               
               
             
                 Au 
                 2.50 
                 2.50 
                 0.01-7.50 
               
                 Ag 
                 92.50 
                 92.50 
                 92.50-97.50 
               
                 Cu 
                 5.00 
                 4.90 
                 0.01-7.00 
               
                 Zn 
                   
                   
                 No more than 5.00 
               
                 Si 
                   
                   
                 No more than 1.00 
               
                 Ir 
                   
                   
                 No more than 0.50 
               
                 Ge 
                   
                 0.10 
                 No more than 1.00 
               
                 B 
                   
                   
                 No more than 0.10