Innovations

March 1998

New Copper Alloys: Revised and Reactivated Alloy Compositions

Copper Applications in Innovative Technology

By Robert Solbach

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ALLOY REVISIONS
Revised and Reactivated Alloy Compositions
percent maximum, unless shown as a range or minimum.
 C14520C15100C17530
Element Olin BrassNGK Metals
Cu (incl. Ag &Te) 99.90 min.    
Cu (incl. Ag)   99.85 min. 99.85 min.
Cu      
P 0.004 - 0.020    
Te 0.40 - 0.7    
Zr   0.05 - 0.15  
Ni (incl. Co)     1.8 - 2.5
Be     0.20 - 0.40
Al     0.6
Fe     0.20
Si     0.20
Pb      
Zn      
Mn      
Sn      
Bi      
Se      
Cu + sum of Named Elements   99.90 min. 99.5 min.
ALLOY REVISIONS
Revised and Reactivated Alloy Compositions percent maximum, unless shown as a range or minimum.
 C18700C66900C89520
ElementNGK MetalsOlin BrassSeBiLOY II
Cu (incl. Ag &Te)      
Cu (incl. Ag) 99.5 min. 62.5 - 64.5  
Cu     85.0 - 87.0
P      
Te      
Zr      
Ni (incl. Co)     1.0
Be      
Al      
Fe   0.05  
Si      
Pb 0.8 - 1.5 0.05 0.25
Zn   Remainder 4.0 - 6.0
Mn   11.5 - 12.5  
Sn     5.0 - 6.0
Bi     1.9 - 2.2 (Bi:Se>=2:1)
Se     0.8 - 1.0
Cu + sum of Named Elements 99.5 min. 99.5 min. 99.3 min.

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