The authoritative public forum
  for Metal Finishing since 1989
-----

Inconel 625 D

 

Is there a difference between Inconel 625 and Inconel 625D?

Jack Mercury
- Framingham, Massachusetts

---

 

Hello Jack!

I've not heard of Inconel 625D, and it isn't noted in the Special Metals (current holders of the "Inconel" trade name brochure. Can you give us more details? Or better yet, chat with someone in the technical service department at Special Metals- they should be able to give you the straight story.

Good luck!
Lee Gearhart
metallurgist - E. Aurora, New York

Jack,

What Lee said is l00% correct. Go to Special Metals. An offshoot of INCO, so to speak, and Brunner Mond.

However you may not get an answer. I queried both of 'them' re a Wiggin statement that, on testing the welding of a very high grade NiCrMo alloy, the molydenum 'disappeared'... the actual words by their chief metallurgist was that it became denudified.

Freeman Newton [deceased]
(It is our sad duty to advise that Freeman passed away
April 21, 2012. R.I.P. old friend).