I have bought some coated strings because I wanted to try that out. After my purchase I noticed that the package says the uncoated strings are stainless steel.
Since my frets are made out of nickel and nickel is softer than steel, this would mean I would see increased fret wear because of those strings.
Am I correct ? But more importantly, if this is correct how much faster approximately will my frets wear out ?
It would be great if people have had any experience with this.
EDIT: Reading some of the answers it seems some people think I am talking about changing nylon strings to "steel" strings.
To quote from wikipedia: "whereas acoustic guitar and piano strings are usually wound with bronze" and "Electric guitar strings are usually wound with nickel plated steel; pure nickel and stainless steel are also used" http://en.wikipedia.org/wiki/Guitar_strings#String_construction
If you read the packaging of Ernie Balls, Martin, DR, etc. you often see them advertise their strings as "nickel", "bronze", "phosphor bronze".