Ring type joint gasket material

[glbmail.com]

On Mar 11, 2011, at 10:50 PM, M. Engineer wrote:

> Can someone clarify why for octagonal ring gasket utilized in
> process piping and pressure vessels the hardness shall be 20-30 BHN
> lower than flange material hardness??
So that any surface deformation is confined to the ring and not the
ring joint groove.

Christopher Wright P.E. |"They couldn't hit an elephant at
chr...@skypoint.com | this distance" (last words of Gen.
.......................................| John Sedgwick, Spotsylvania
1864)
http://www.skypoint.com/members/chrisw/

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