Many thx.
jk
On Aug 27, 2020, at 11:38 AM, David Hillman wrote:

> Hi Joyce - the underplating is typically nickel.
>
> Dave Hillman
> Collins Aerospace
>
> On Thu, Aug 27, 2020 at 10:20 AM Yuan-chia Joyce Koo  
> <[log in to unmask]>
> wrote:
>
>> Gurus,
>> what is the std plating surface finishing  of ferrous metal
>> components leads?  Cu or Ni underlying layer (thickness X-micron)
>> with solderable surface for lead free? (98% Tin for example, assume
>> flash gold is too expansive  - >2000 per oz, shish).  Anything in the
>> field  that is new?  Is standard change from MIL to ASTM  for the
>> plating?  Many thanks.
>> regards,
>> jk
>>