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A customer has specified two copper alloys on a part drawing sent to us. The first one is 'PC-12 SB Brass' It has a tensile strength of 63 - 70 Ksi and elongation of 30-34 % in a 50 mm specimen. The electrical conductivity is 35 - 38% IACS. The second one is CDA 815 with tensile strength of 54-59 Ksi, elongation of 20-25 % on a 50 mm specimen and IACS - 70%. The only additional information I have is PILAD. I guess, this is the name of the original manufacturer which does not exist anymore.  

I am unable to find a UNS number or any other standard equivalent. I will greatly appreciate if anyone can help me with finding the UNS equivalent grade or tell me that this is a variant of a std grade. 

Hello

A good resource to use is the Copper Developement assocaition (CDA).

Official Site of Copper Development Association, Inc. (USA)

Craig

A customer has specified two copper alloys on a part drawing sent to us. The first one is 'PC-12 SB Brass' It has a tensile strength of 63 - 70 Ksi and elongation of 30-34 % in a 50 mm specimen. The electrical conductivity is 35 - 38% IACS. The second one is CDA 815 with tensile strength of 54-59 Ksi, elongation of 20-25 % on a 50 mm specimen and IACS - 70%. The only additional information I have is PILAD. I guess, this is the name of the original manufacturer which does not exist anymore.  

I am unable to find a UNS number or any other standard equivalent. I will greatly appreciate if anyone can help me with finding the UNS equivalent grade or tell me that this is a variant of a std grade.