introduction and question on 8670

[Willie71]

That temp isn’t even close to being right for knives and the processes we use, not sure why alpha doesn’t put up an accurate spec sheet, if I remember correctly that’s the spec sheet the supplier provided to alpha but in their own testing they have proven that temp is wrong, I believe they tempered the knife shown in the video above at 200 and it came out to 63. Willie did some great testing that shows around 1525 to be an ideal quench temp to get between 65/64 out of the quench, If your using a oven I’d stick to that temp then play with different temperatures in the temper to see what results you get with your setup. If you don’t have a Rockwell tester dragons breath forge makes some great hardness chisels that let you test your blades to a point, once you have some baseline results with your setup make a few test blades as identical as possible and see how they perform at different hardness ratings. I’ve had good results with most blades at 61-62, if your using a kitchen oven to temper than you have to check what your specific oven runs at because they aren’t all the same.

There is a 100f Range where results were pretty consistent. Widest range of any of the steels I have tested so far. Great for guys using a forge.

 

[Joshua Fisher]

There is a 100f Range where results were pretty consistent. Widest range of any of the steels I have tested so far. Great for guys using a forge.

I currently use a forge heat treating it and have been getting really good results, I get all of my 8670 from Pops and have been very impressed with the quality and pricing, can’t think of anywhere else I can get 4” wide material in 3/32 and 1/4 that doesn’t cost an arm and a leg. I’ve got some 1/4” plate on the way to make some hatchets and thick khukuris and it was only $49 for a 1/4x4x48” piece

 

[Tom Lewis]

Thanks, that was the information I needed. I do have a Rockwell tester and two Paragon ovens. I am looking forward to using the steel.