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Galvanized or black iron fittings?

Post about things you have launched or thought about launching. Also post about various materials used for building cannons. No posts about explosive projectiles!
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Galvanized or black iron fittings?

Unread postAuthor: turner » Wed Oct 14, 2009 11:55 pm

what would be better for a small bore qev gun. black iron or Galvanized fittings? there both about the same price
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Unread postAuthor: starman » Thu Oct 15, 2009 12:17 am

From a strength perspective, both are way more than strong enough to handle anything a QEV can give them. Both are heavy, black iron will eventually be more proned to rusting. Other than that, is really your choice.
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Unread postAuthor: POLAND_SPUD » Thu Oct 15, 2009 6:59 am

galvanised... it won't rust...

though to be honest I have to say that galvanised fittings that you can buy these days are not as rust proof as they were in the past
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Unread postAuthor: niglch » Thu Oct 15, 2009 7:20 am

I know that some of the black iron fittings I tried using on the pneumatic gun I built a couple years ago rusted very quickly and eventually started leaking. I'm assuming it is because the moisture in the air I was pumping in to the gun condensed as the air was compressed and deposited itself on the insides of the fittings. I ended up switching to brass. However, if what you are putting through the pipes doesn't have any moisture in it (like propane), black iron is probably fine. Other than that I would probably go with the galvanized to avoid rusting issues.
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Unread postAuthor: maverik94 » Thu Oct 15, 2009 4:38 pm

Black iron is a bit cheaper though.
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