Corrosion Resistance of 410 and 4140
Corrosion Resistance of 410 and 4140
(OP)
12 Cr stainless and 4140 are popular alloys for handgun barrels. During use, the barrels pick-up lead and copper from the projectiles and need to be cleaned. One of the cleaning methods I have heard about involves soaking the barrel in a 50/50 mixture of vinegar and hydrogen peroxide. Does anybody know if this mixture would have any harmful effects on either of these alloys, particularly in terms of pitting?





RE: Corrosion Resistance of 410 and 4140
Carbon and alloy steels, such as 4140, are attacked by acetic acid at all concentrations. The attack will not take the form of pitting. The corrosive attack during cleaning should be negligible if you're a quick cleaner.
RE: Corrosion Resistance of 410 and 4140
This appraoch falls under the rubrick of "One test is worth 100 opinions."
RE: Corrosion Resistance of 410 and 4140
RE: Corrosion Resistance of 410 and 4140
RE: Corrosion Resistance of 410 and 4140
as for the peroxide...carbon steels aren't recommended at any concentration at any temperature. the 410 is good up to 90F.
so...i'd recommend testing out a sample as well, if possible.
RE: Corrosion Resistance of 410 and 4140
RE: Corrosion Resistance of 410 and 4140
RE: Corrosion Resistance of 410 and 4140
RE: Corrosion Resistance of 410 and 4140