Hello,

we had in the past worked for Rolls Royce Marines and Nuclear, they have an specification, where is stated that during the production of finished surfces the contact with copper cadminum, zinc etc. shall be avoided. For the few orders we have for this customer, we didn't need process steps, like wire eroding (copper wire), bur know we plan a more generic procedure for all parts we produce for nuclear power plants, I entered the specification from Rolls Royce and now everybody claims, we can not fullfill this. We also produce parts according to the RCC-M, and I just take a look in this requirements and find nothing similar regaring zinc, lead cadmium etc., the RCC-M only say stell shall have less than 0,08% of cooper
Two questions: How do you see the risk, that a nail covered with zinc in a pallet can influence the material?

And has the ASME requirement something similar?

Greetings

TamTom

I only know the phenomenon of "zink embrittlement" of austenic steel at elevated temperature.
Mauro