I have 4130 in sheets also - for making fittings, etc. I think the issue
with welding "high strength" auto steel might be tempering, or the
ruination of the same - - -

On Mon, Jun 15, 2015 at 6:26 PM, Curt Raymond via Mercedes <
mercedes@okiebenz.com> wrote:

> Google doesn't seem to reveal much more than what I remembered which the
> advice to "just don't do it". I did find some vauge references to carbon
> embrittlement.
> 4130 shows up mostly in tubing no? I'm wondering if the "high strength" is
> really "high carbon" and something about acetylene mixes with the carbon to
> do something funky.
> -Curt

OK Don

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