DDC Fixed Head Disks

jd onymouse at garlic.com
Sun Jun 10 15:58:46 CDT 2007

jd wrote:


> IIRC, helium costs less than argon. There's something else about argon that
> makes it undesireable as an inert gas except for welding. What that is I do not
> know.

I hear now that argon now costs less. Have yet to see a price list. (Hello? Air

Not too long ago a 5ft cylinder of 99.995% helium @ 3600psi costs $75.00 plus
whatever deposit and demurrage, and the same cylinder of 99.95% argon @ around
1200psi cost around $100.00. There's much more helium in the cylinder than argon.

I'm sure nitrogen was more expensive. I remember thinking that it was odd that
common nitrogen was so much more expensive than helium.

Sure wish I could find the real price lists. They're somewhere down in the
Jurassic stratum of this "library" of mine.

Confidence is the feeling you have before you understand the

More information about the cctech mailing list