On Tue, 04 Sep 2007 16:47:14 -0700, mark
wrote:

Can 1/2" schedule 40 steel pipe be used for hydraulics up to 2000psi?


Hey Mark,

No. Maximum working pressure for 1/8" up to 1" using seamless or
continuous weld pipe is 700PSI, and even then anything over 300PSI you
must use steel rather than cast iron fittings.

Brian Lawson,
Bothwell, Ontario.