D2 in an oven with product
D2 in an oven with product
(OP)
Is there any danger with putting D2 parts in an oven heated to between 500-1000F with medical stainless steel product? I've been told the D2 could outgas chromium but I haven't found anything to confirm that.
RE: D2 in an oven with product
Besides the SS parts will have Cr also.
I sure hope that your SS parts are being treated at the lower end of that temperature range, unless you are aging PH grades or tempering martensitic alloys.
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RE: D2 in an oven with product
RE: D2 in an oven with product
Since you are likely air cooling this shouldn't be a problem.
We used to temper D2 at 350F as soon as it had cooled enough to handle.
Then we would go back and re-temper to get the properties that we wanted.
https://www.hudsontoolsteel.com/technical-data/ste...
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P.E. Metallurgy, consulting work welcomed
RE: D2 in an oven with product
RE: D2 in an oven with product
Are you sure that the hardness is the issue? 60-61 on 10V is fairly standard.
What microhardness values are you getting?
In my experience 10V has similar toughness to D@ and 4x the wear resistance.
The V in 10V will always give it better wear resistance at the same hardness.
Are these fairly small parts? Have you looked at quenching from 1825F with a double 450F temper?
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P.E. Metallurgy, consulting work welcomed
RE: D2 in an oven with product
RE: D2 in an oven with product
The hardness should be about 61-62 and it should never drop (OK, it will drop a little over hundreds of hours).
With a 1025F temper D2 should be about 58, and it will slowly drop over time.
You might consider M4 or T15 for this application.
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P.E. Metallurgy, consulting work welcomed
RE: D2 in an oven with product