Metal Alloy

Abstract

A metal alloy is primarily formed of copper, nickel, magnesium and iron. The main constituents are copper and nickel. The contents of magnesium and iron are increased considerably in comparison with the prior art conventional alloys. The novel alloy has the following constituents in the following proportions (in % by mass and/or % by weight): copper (40% to 61%), nickel (35% to 45%), manganese (3.9% to 10%), iron (0.1% to 5%); and other materials, such as carbon, silicon, aluminum, magnesium, titanium, chromium, rare earths, molybdenum, and/or yttrium (at most 2% in total), with the sum of the components amounting to 100% by mass or, respectively, to 100% by weight.

1 . A copper-nickel metal alloy, consisting essentially of the following constituents in the following proportions (in % by mass and/or % by weight): 
       
         
           
                 
                 
               
                     
                 
                   copper 
                    40% to 61% 
                 
                   nickel 
                    35% to 45% 
                 
                   manganese 
                   3.9% to 10% 
                 
                   iron 
                   0.1% to 5% 
                 
                   other materials 
                   at most 2% in total. 
                 
                 
               
                   with the sum of the selected components adding to 100% by mass or 
                 
                   100% by weight. 
                 
                     
                 
             
                
               
               
                
                
                
                
                
               
            
             
                
                
                
               
            
           
         
       
     
     
         2 . The metal alloy according to  claim 1 , having the following proportions (in % by mass and/or % by weight): 
       
         
           
                 
                 
               
                     
                 
                   copper 
                    46% to 59% 
                 
                   nickel 
                    37% to 42% 
                 
                   manganese 
                   3.8% to 7% 
                 
                   iron 
                   0.2% to 5% 
                 
                   other materials 
                   at most 2% in total. 
                 
                 
               
                   with the sum of the selected components adding to 100% by mass 
                 
                   or 100% by weight. 
                 
                     
                 
             
                
               
               
                
                
                
                
                
               
            
             
                
                
                
               
            
           
         
       
     
     
         3 . The metal alloy according to  claim 1 , consisting of copper, nickel, manganese, iron, and other materials in the following proportions (in % by mass and/or % by weight): 
       
         
           
                 
                 
                 
               
                     
                     
                 
                     
                   copper 
                   55.03% 
                 
                     
                   nickel 
                   39.66% 
                 
                     
                   manganese 
                   4.64% 
                 
                     
                   iron 
                   0.46% 
                 
                     
                   other materials 
                   0.21%. 
                 
                     
                     
                 
             
                
               
               
                
                
                
                
                
                
               
            
           
         
       
     
     
         4 . The metal alloy according to  claim 3 , wherein said other materials are present in the following proportions (in % by mass and/or % by weight of the total alloy): 
       
         
           
                 
                 
                 
               
                     
                     
                 
                     
                   carbon 
                   0.05% 
                 
                     
                   silicon 
                   0.06% 
                 
                     
                   aluminum 
                   0.02% 
                 
                     
                   magnesium 
                   0.03% 
                 
                     
                   titanium 
                   0.01% 
                 
                     
                   chromium 
                   0.02% 
                 
                     
                   further materials 
                   0.02% 
                 
                     
                     
                 
             
                
               
               
                
                
                
                
                
                
                
                
               
            
           
         
       
     
     
         5 . The metal alloy according to  claim 4 , wherein said further materials are selected from the group consisting of the rare earths, molybdenum, and yttrium. 
     
     
         6 . The metal alloy according to  claim 1 , consisting of copper, nickel, manganese, iron, and other materials in the following proportions (in % by mass and/or % by weight): 
       
         
           
                 
                 
                 
               
                     
                     
                 
                     
                   copper 
                   52.87% 
                 
                     
                   nickel 
                   39.16% 
                 
                     
                   manganese 
                   3.98% 
                 
                     
                   iron 
                   3.75% 
                 
                     
                   other materials 
                   0.24%. 
                 
                     
                     
                 
             
                
               
               
                
                
                
                
                
                
               
            
           
         
       
     
     
         7 . The metal alloy according to  claim 6 , wherein said other materials are present in the following proportions (in % by mass and/or % by weight of the total alloy): 
       
         
           
                 
                 
                 
               
                     
                     
                 
                     
                   carbon 
                   0.05% 
                 
                     
                   silicon 
                   0.09% 
                 
                     
                   aluminum 
                   0.03% 
                 
                     
                   magnesium 
                   0.03% 
                 
                     
                   titanium 
                   0.01% 
                 
                     
                   chromium 
                   0.02% 
                 
                     
                   further materials 
                   0.02%. 
                 
                     
                     
                 
             
                
               
               
                
                
                
                
                
                
                
                
               
            
           
         
       
     
     
         8 . The metal alloy according to  claim 7 , wherein said further materials are selected from the group consisting of the rare earths, molybdenum, and yttrium.