[TheForge] Question re: inert gases for welding.

[Rich Maynard]

Most use compressed air, though, which is of course about 80% nitrogen.

I do find that the 'slag' from plasma cutting (even mild steel) is pretty
hard, though.

Cheers,

Rich.




> -----Original Message-----
> From: theforge-bounces at mailman.qth.net
> [mailto:theforge-bounces at mailman.qth.net]On Behalf Of debmiller at fuse.net
> Sent: 08 September 2004 20:31
> To: Sponsored by ABANA
> Subject: Re: [TheForge] Question re: inert gases for welding.
>
>
> I have seen nitrogen used for plasma cutting only.
>
> Ray Miller
> Cincinnati
> >
> > From: "Bruce Freeman" <FREEMAB at pt.fdah.com>
> > Date: 2004/09/08 Wed PM 01:26:30 EDT
> > To: <theforge at mailman.qth.net>
> > Subject: [TheForge] Question re: inert gases for welding.
> >
> > Hydrogen is sometimes mixed into TIG inert gas.  CO2 is sometimes used
> > in or as MIG inert gas.  Otherwise, the nobel gases (He, Ar) are used.
> >
> > What about nitrogen?  Nitrogen can harden steel.  Could this be
> > beneficial.
> >
> > This is idle curiosity, BTW.
> >
> > Bruce
> > NJ
> >
> >
> >
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