DWM upper value?

[DonVoigt]

Originally Posted by Jim Mac

Whats weird is, under the places that the chrome flaked off, it still looks blue underneath. Jim

Chrome must be plated over copper, it won't stick to steel.
Nickel can be plated on steel.

Could be either, with just black "rust" underneath, black rust is ferric oxide and not the more common red rust which is ferrous oxide(if I remember my chemistry correctly). Depends on how much oxygen is present when the rust is formed.

Under plating there is "less" oxygen.

That info and a $1 will get you a cup of coffee somewhere!