O1 "annealed"?

Jens Schuetz

Jens Schuetz

Joined
Jun 24, 2013
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4,162
Hi Guys,
I'm about to make my first knife and plan to go the stock removal route.
O1 is easier to file and drill etc than A2, I also dont mind having to sharpen more often.
Anyways my question is about the O1 steel which I am buying. It says it is "annealed" does that mean it is hardened / quenched already (my German/English dictionaries are a bit vague on the meaning of annealed)
If it is hardened, how high would I have to heat it to get it back to normal so that I can start working on it?
Thanks for your help.
 
Awesome. Thank you! :)

I don't want to start a new thread but I have another question.
I read that during quenching the steel will deform a bit. So I guess there is no point of sharpening it too much before I harden it? Just give it a rough shape, harden it and then go for the details?
Thanks again.
 
Everyone has their preferences but it seems most take carbon steels to a pre heat treat edge thickness of .030". Maybe a little less. Maybe a little more.

Lots of threads on pre heat treat edge thickness.
 
There are a number of types of annealing which result in different micro-structures . The best to work with for you is spheroidize annealed in which the carbides are little spheres. A pearlitic anneal will cause problems in drilling etc.
 
DMD08 said:
Everyone has their preferences but it seems most take carbon steels to a pre heat treat edge thickness of .030". Maybe a little less. Maybe a little more.

Lots of threads on pre heat treat edge thickness.
Click to expand...

With good decarb protection, edges on 01 can be taken to finished thickness if desired.
 
Awesome. Thanks guys, that helps a lot.
Also thanks for link to the book. Every topic they mention in the preview sounds very interesting. I wish they would have taught us more about steel when I studied engineering.

Wherever I checked for purchasing steel online they don't specify the type of annealing. I can just hope its not pearlitic :eek:
Thanks again
:)
 
Precision ground 01 is spheroidized annealed. It's soft enough to carve off slivers with a sharp knife.
 
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