Israelkk - Thanks for the quick response. First let me say again that they "Reference" the ASTM spec for the mechanical req'ts. I will approach them as to where the 100K min yield came from as well as the elongation.
I didn't want to bore you with the details of the test pins. The actual...
My customer references ASTM A747 Gr. CB7Cu-1 in their material spec. Parts are required to be HT'd to the dbl H1150 condition. I accompany each lot of castings with a set of 4 test pins (3 1/2" long, threaded on both ends...).
I've been having a problem lately getting the yield strength to...
