Re: PA & HA

From: <Christopher>
Date: Tue Sep 20 2005 - 13:03:00 EDT

On Sep 20, 2005, at 1:54 AM, Jijoy wrote:

> Whats the difference between Product Analysis and Heat Analysis ?
> Also wether normalised can be substituted by hot formed.
Heat analysis is performed on the ingot; product analysis is performed on the finished product.
Normalized is definitely not the same as hot formed. Normalization is a grain refinement heat treatment that increases toughness. Hot formed could mean anything.

I don't have a current copy of the specs you're citing directly at hand. Product analysis may be a requirement in any or all of them. If so your vendor is offering non-compliant material and you shouldn't accept it. Presumably you specified normalized material for a reason, probably because you want added toughness. Don't accept 'hot formed' as a subsitute becasue it isn't the same.
Christopher Wright P.E. |"They couldn't hit an elephant at <a href="/group/PipingDesign/post?postID=7DWPaXr4YkuCUo6mGD_C8exrXTvYcXce3YLB-I1jBXmEgJ5RjxBxaJfnIUoUUlJafEkEWd-JStXNoA">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 Tue Sep 20 13:03:00 2005