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Re: Steel can pop pop engine?

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  • Frank McNeill
    To find pictures of cans, cannons, candelabra or Canada, search with Google Images. Old Frank
    Message 1 of 3 , Jun 5, 2011
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      To find pictures of cans, cannons, candelabra or Canada, search with Google Images.
      Old Frank

      --- In pop-pop-steamboats@yahoogroups.com, Donald Qualls <silent1@...> wrote:
      >
      > zoomkat wrote:
      > > Does any body know of commonly available drink cans with dished
      > > bottoms that are made of steel instead of aluminum?
      >
      > I recall running across drawn cans that looked like aluminum, but were
      > magnetic, back in the 1980s, but I haven't seen any like that since 1990
      > or so. There was a short period when the material cost difference made
      > steel more attractive, even though the can weighed twice as much empty,
      > but advances in the drawing and ironing process allowed use of less and
      > less metal in the aluminum cans, while steel could only be drawn about
      > half as thin (which uses around four times the material, by weight, and
      > still costs just as much for the drawing as making the much thinner
      > aluminum cans).
      >
      > The one possible exception I know of is soup cans -- the ones with a
      > pull-tab top /may/ be steel (they used to be), but the dished bottom is
      > pretty shallow, and I'm not sure those haven't converted to 100% aluminum.
      >
      > --
      > If, through hard work and perseverance, you finally get what you want,
      > it's probably a sign you weren't dreaming big enough.
      >
      > Donald Qualls, aka The Silent Observer http://silent1.home.netcom.com
      >
      > Opinions expressed are my own -- take them for what they're worth
      > and don't expect them to be perfect.
      >
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