Re: Qualification of Material Subset as Code Listed Material

From: <Christopher>
Date: Sun Sep 30 2007 - 12:23:00 EDT

On Sep 30, 2007, at 11:31 AM, Ken Nisly-Nagele wrote:

> I did not understand a matching UNS number was not sufficient.
> Normally,
> the materials I work with have the A, B, SA, or SB designation.
UNS numbers are chemistry only--no process requirements no minimum mechanicals. Most ASME/ASTM Specs reference UNS numbers but only as a courtesy. For Code use the SPEC must be an ASME material spec in the size range provided with specific guaranteed mechanicals and chemistry.

Christopher Wright P.E. |"They couldn't hit an elephant at <a href="/group/PipingDesign/post?postID=H-8baqF5SW7hgXCL6l8gwXGkLpXNnNZ9daG5F4dasPfPfDiM4YGnfPlKzgXTwFr6AXOs1Gic_ehCxpDXxSU">chrisw@skypoint.com</a> | this distance" (last words of Gen.

____________________| John Sedgwick, Spotsylvania 1864)

<a href="http://www.skypoint.com/~chrisw">http://www.skypoint.com/~chrisw</a> Received on Sun Sep 30 12:23:00 2007