From INCO's website you'll get their phone number. Give a call to them, ask to speak with the technical dept. and make the question directly to the technical people. I know INCO from my college days forty years ago and they have a lot of excellent publications covering all aspects of the alloys they manufacture.
Another source of information is Huntington Alloys, from Huntington, WVa, an INCO's subsidiary for high technology applications of INCO's alloys. I don't know their website nor their address or phone number, but it shouldn't be difficult to find them out.
Good luck
Giovanni S. Crisi
Sao Paulo - Brazil