Ron Webb wrote:
There is no difference between mild steel and 4130 as far as
corrosion resistance is concerned,

Now you have got my curiosity in gear. As I said, my personal
experience is that I have seen a significant differance.

I went looking for some quantized data on the subject. I have not
found what I was looking for on the net, and may run up to the
University library later on. For now I found http://www.armycorrosion.
com/summit2001/DAY_1_PM/schario.pdf

It does not have much in the way of quantized data, comparing 1010 to
4130 corrosion properties, but there is enough to refute the claim
that there is no differance.

The stuff in my garage doesn't seem to notice any difference. It is
more than happy to rust if I don't do anything to protect it. It could
be that it happens slower; I haven't done any sort of scientific testing
to see. But the bottom line is that rusty is rusty.

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