Casting cross over for Inconel 693

[DAVIDSTECKER]

I am looking for chemistry and heat treating information for a cast version of Inconel 693.
Some of the research I have done for some of the other Inconel 6XX series has lead me to ASTM A494.
I have data that lists the chemistry of Inconel 693, but I'm not sure that just matching chemistry is the correct way to go.
If anyone can point me to an ASTM speciation and grade or has a chemistry and heat treatment they have used before I would appreciate the information.
Best regards, David

 

[metengr]

Look here at last page for all product forms;

http://www.specialmetals.com/documents/Inconel alloy 693.pdf

 

[DAVIDSTECKER]

Thank you metengr,
Unfortunately the standard plate, bar, round stock does not lend its self to the part I need to make, plus our company already has the casting patterns from previous projects that were done in varies grades of stainless steel.
I had called Special Metals earlier today to see if they had a casting specification but I have not heard back from them as yet. I did find that some of their structural shape alloys did have ASTM cast equivalents so I am hopeful that they may have something not yet published.
Best regards, David

 

[metengr]

DAVIDSTECKER;
That was going to be my next suggestion, to call SM. Several of their technical folks attend ASME meetings and I have found them to be most helpful.

 

[EdStainless]

There is a small group of similar alloys designed for resistance to metal dusting. I have seen these alloys centrifugally cast to make furnace tubes.
My guess is that the cast spec is for a generic chemistry, not the 693 specifically.

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Plymouth Tube

 

[arunmrao]

Please be careful while selecting the cast equivalent on a one to one basis.While you may cast with the right chemistry,without defects,achieving %Elongation and R.A is difficult. I have struggled making such choices.

 

[pwtomlin]

I see this alloy has 2.5-4.0% aluminum. I really doubt you would find an ASTM specification for a cast version. You're likely looking at vacuum melting, and if the part you want can't be investment cast I'm not sure how much success you will have finding someone who can cast it at all. Not knowing more specifics of your application, I would say you'd stand a better chance either going with an available product form or finding a replacement alloy.