I have two cheap soldering irons, one of which was given to me. I was also given some solder (of unknown quality), which I recently used up. I bought some cheap solder from Harbor Freight. I've used both a wet sponge and steel wool to clean my soldering iron.
With both soldering irons and both solders my soldering iron tip would slowly be eaten away during use.
Is this normal for soldering iron use in general? Which factors would cause or worsen this?
I'm trying to determine if buying a quality tip and some decent solder would be enough, or if I will need a quality soldering iron to keep this from happening.