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Old February 7, 2012, 11:15 AM   #1
praetorian97
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Pink Film

What is that pink film that looks like corrosion on brass?
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Old February 7, 2012, 11:56 AM   #2
serf 'rett
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Cartridge brass is roughly 70% copper and 30% zinc, IIRC. Exposure to acid can leach (dissolve) the zinc out of the brass, leaving the copper. I think this is the most common cause of the pink coloring.
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Old February 7, 2012, 03:32 PM   #3
praetorian97
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Should any concern be expressed?
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Old February 7, 2012, 04:41 PM   #4
serf 'rett
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If female, Only if the pink is a different shade from your pink pistol.
If male, well you'll catch comments from your fellow shooters.
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Old February 7, 2012, 05:18 PM   #5
243winxb
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Google > "stress corrosion cracking" & "dezincification" Brass can become weak and/or brittle.
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