Leaving the part to air cool slowly will generally result in lower hardness. It
depends
upon the alloy composition, temperature and cooling rate. Mild carbon steel
doesn't get
/real/ hard when quenched, but slow cooling will leave it as soft as it can get.
Gary McCormick
San Jose, CA
Dan and Louise Yates wrote:
> I was rebuilding the clutch linkage on my work truck today (rebuilding the
> rod ends and turning slots back into round holes) and I started to wonder if
> a welded part that is cherry red will wear longer if it is left to cool
> naturaly or if it was quenched?
>
> Dan Yates
> working on everything but the roadster :(
>
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