We know that it is messed up by HRC numbers WHAT we see is question ? Who know how to read what we see
That goes completely through the the blade?Could it just be uneven decarb?
My equipment is far from a back yard bbq and coffee can of used moter oil lolNow that we have an etch and a picture, I'd like to see Devin HT it and see if we get the same issues in the same spots.
Maybe deeper than normal? Idk, just trying to learn here tooThat goes completely through the the blade?
That is first I thought when I see result of hardness .Maybe he try to HT with acetaline in open space ? Sometimes people don tell whole story ...........I mean on owner of that steel not on JT.i’m not sure if steel could be heated that unevenly for that long to cause that kind of decarb. (With an oxy acetaline torch maybe? But why? I suspect this was cast this way from the mill, and drawn out to make the blotches during rolling. What do I know though? This is beyond me. I linked a previous discussion last page on alloy banding and carbide segregation. The patterning was much finer. This looks more like the issue with Aldo’s bad W2 from 2012 or so, that was recalled.
Ok I was able to get the blade etched tonight before heading inside. It is quite revealing and much weirder then what was shown with the 3000grit surface grind.
(Removed photos to save space)
what’s really interesting is the spots on the back side that match the blotches on the other side. Also it looks like stringers or lines that you would get from etching with a scratch on the surface but there are no scratches on that 3000grit finish.
I never said it was.My equipment is far from a back yard bbq and coffee can of used moter oil lol
Was a jokeI never said it was.