TTT chart for 80CrV2?

I picked some of this stuff up and blade show for some hawks, Aldo was saying that it is some of the best stuff for hawks (haven't used it yet). and I asked some guys how they do it most of them said like 1084 plus 5-10 min to soak.
 
I soak at 1475 for 10 min., quench in P-50, & temper twice. On my equipment, 400 yields HRC-62.
 
samuraistuart said:
1080+ doesn't come NEAR CruForge V. I know it's easy to look at formulas and say....oh this looks like this so it will behave like it too....and I am super guilty of that. I am the world's worst when it comes to making assumptions!!!!! Look at my post above I thought 1080+ was 80CrV2....wrong answer!!!!! But honestly, it looks like 80CrV2 has quite a bit of variance.....you gotta know exactly what you have (carbon from .45 to 1). 1080+ has only .2 vanadium and only .8 carbon. Cru Forge V has over 1 point of carbon, and .75 vanadium. When there is just .2 vanadium and carbon right at the eutectoid point.....you won't get much in the way of vanadium carbides..that small of vanadium in a .8 carbon is just there to help keep grain small. With .75 vanadium in a hypereutectoid like CruForge V, there is plenty left over carbon and plenty of Vanadium. This translates into a steel that is freaking super difficult to abrade. Abrasion out the wazoo, on a different level than 1080+ or 80CrV2, which are super tough steels.
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My statement was too generic. Cruforge V looks like a vanadium based version of 52100. Cruforge, 1080+, 80CrV2 are similar in terms of the simple formulas, just as 50100 was.
 
That composition shows that 80CrV2 to be exactly 1080+ (not showing the Mn tho). 80CrV2, as I understand it, has Moly, Mn (which I think was just ommited on the TTT chart above for whatever reason), Silicon, and Nickel. Nickel being very important. The formula given, if that is all there is in it, just the bit of Cr and V, normalize at 1600-1650, grain refine, harden at 1500 for 10 minutes into Parks 50. Temper at 400.
 
samuraistuart,

The composition of my sample is Carbon 0.81 Silicon 0.32 Manganese 0.42 Phosphorus 0.006 Sulfur 0.002 Chromium 0.54 Nickel .075 Molybdenum 0.016 Vanadium 0.17
 
Kieran Klein said:
I was planning on making a chopper out of this steel would you guys suggest a 425 temper or 450
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Try 425 temper, chop some hard stuff, and if it chips, go to 450, if it still chips, go 475. I can't imagine needing to go higher than that. A simple scrap wood handle is all you need to test. There is no better way to proceed than testing :thumbup:. This is a tough steel. I don't think you would need to go below Rc60 if you have good grain refinement prior to heat treat.
 
Willie71 said:
Try 425 temper, chop some hard stuff, and if it chips, go to 450, if it still chips, go 475. I can't imagine needing to go higher than that. A simple scrap wood handle is all you need to test. There is no better way to proceed than testing :thumbup:. This is a tough steel. I don't think you would need to go below Rc60 if you have good grain refinement prior to heat treat.
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Thank you very much I shall order some soon!
 
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