I think I'll leave this discussion with an apology to Phil for offending him. I should not have done that. Maybe we can make "lemonade out of lemons" here. The discussion about nickel and tin alloying is put to bed in my mind, since I actually lived the production and know what the processes were.
The discussion about physical changes in casting profiles might be interesting to the group however - I'll start a new thread and contribute what I can.
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