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03-20-2015, 04:14 AM #15
- Join Date
- Feb 2015
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Thanked: 49For normalizing O1, more like 1600F. For austenizing, 1450-1500 is what I have read. If there is such as thing as "generic' temp for a lot of the carbon steels that you might use, it is 1500F. I have used that on steels like 1084, 15N20, CruForgeV and 115W8 with good results. As best as I can tell, the general rule is that if you have a lower carbon content like with 5160, you want to bump the temp up a bit and if you are using a steel with much more than say .85% carbon, you might want to think about dropping it a bit for "cutting tool" use. The reason that I stay a little high with stuff like Cru Forge Vand 115W8 is because you arguably want more carbon in solution to form lots of hard little carbides from the fairly substantial amounts of vanadium or tungsten in those steels. The current conventional wisdom is the 52100 works better for thin edged tough field knives, kitchen knives, razors and such when done at 1475 than at the 1525-1550F "industry standard" temp for making bearings. Likewise, the optimum temp for say normal 1% W2 is like 1460-1475 if high hardness is your goal. On the other hand, I have seen smiths go as low as 1425F with a pretty long soak by W2 standards in order to get a crazy active hamon.