Dear Expert, Kindly advise the P

[kunjhon]

Dear Expert,

Kindly advise the P No of the material 90/10 CuNi, UNS C70610 to BS 2871
I didn't find out from the table QW-422, ASME section 9.

Kindly advise and support. It is needed prior to PWPS preparation

 

[david339933]

There is none.
Good website for checking p#'s.
[link pnumbers.com]Link[/url]

 

[TugboatEng]

From my experience with 90/10, similar welds are done with the same filler. Dissimilar uses a nickel based alloy which may explain why there is no P number as copper and nickel are in separate groups.

Why aren't you brazing this?