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D2 in an oven with product 1
- Thread starter TomWL
- Start date
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1
- #2
EdStainless
Materials
It had better not outgas at those temps.
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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P.E. Metallurgy, consulting work welcomed
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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P.E. Metallurgy, consulting work welcomed
- Thread starter
- #3
Thanks EdStainless. I should have said SS and nitinol for that temp range but it doesn't seem like the D2 would pose a problem. With the D2 having already been heated to 1850 for hardening, I would think anything that would happen already did but I just wanted to make sure.
EdStainless
Materials
The only real issue is the cleaning of the D2 prior to tempering.
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.
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P.E. Metallurgy, consulting work welcomed
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.
= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, consulting work welcomed
- Thread starter
- #5
Yeah we use D2 pretty regularly in our punches and dies and typically temper at 400 to get 59/60 Rc. That's why I want to switch to D2 from CPM 10V. The CPM isn't holding the hardness and cutting edge that I think D2 would give us after basically tempering it over and over again in the production oven.
EdStainless
Materials
What temper on the 10V?
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
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?
= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, consulting work welcomed
- Thread starter
- #7
EdStainless
Materials
If you are using the 10V at up to 1000F you need to quench from 2025-2050F and then temper at 1025F.
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.
= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, consulting work welcomed
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.
= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, consulting work welcomed
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- #9
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