Any idea how to figure out what steel this is?

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So, a couple years ago , I decided I was going to make my first blade. Well, fast forward to now, I am finally making it, but for the life of me, I can't remember what steel I bought. I am thinking it is D2. I bought it from Texas knife supply and almost positive I was choosing from 01 or D2. Like I said, I bought it about two years ago. It is not a stainless as it does have a rust spot on it, but not bad for that long in my garage. Here are a couple pics, hopefully they will help:

20150121_122232_zpsw4rtboq0.jpg

20150121_122208_zpshvxtsftp.jpg
 

samuraistuart

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No way to tell by pics. If it is resisting rust, tho.......I bet it is NOT O1. That stuff will rust if you look at it wrong. Stainless steel could have a rust spot on it just like that if left in a garage for a year. It is stain LESS after all.
 
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Well, I know it isnt stainless. At the time I bought it, I was dead set against it. I am sticking to thinking it is D2. Either way, O1 or D2, should be ok heat treating to 1500 right? Seems like the main difference is in tempering from what I have been reading. I will probably have it heat treated as D2.
 

PEU

Gaucho Knifemaker
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spark test may help, take a photo of the sparks it makes with a 36 belt. if your doubt is o2 or d2 and you have another piece of steel maybe ferric chloride can help, 02 should be darker if compared to d2


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Stacy E. Apelt - Bladesmith

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D2 should resist rust a lot more than O-1. Sand it clean and stick it in water for five minutes. Take it out and lay it on the bench. If it is O-1, it will be pretty much covered in rust the next day.

A second way would be to take a piece and heat it to just a bit above non-magnetic for about 60 seconds. Quench in oil. If it fully hardens, it is O-1. D2 has to be heated to 1850F and held for 10-30 minutes to austenitize.
 

samuraistuart

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That's right, Stacy has a good point. Harden it at 1500 and see what that gets you.
 
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dont really know if it helps. 36 didnt really throw too many sparks, probably about time to change the belt. disk sander on the side did a little better:
[video=youtube;JLKujbaGjM4]http://www.youtube.com/watch?v=JLKujbaGjM4[/video]
 
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Call texas knife supply and see if they will look up your order, im sure they keep records
 
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D2 should resist rust a lot more than O-1. Sand it clean and stick it in water for five minutes. Take it out and lay it on the bench. If it is O-1, it will be pretty much covered in rust the next day.

A second way would be to take a piece and heat it to just a bit above non-magnetic for about 60 seconds. Quench in oil. If it fully hardens, it is O-1. D2 has to be heated to 1850F and held for 10-30 minutes to austenitize.

I don't have the equipment to heat treat, but will try to see how it rusts overnight.
 

PEU

Gaucho Knifemaker
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video is marked as private... can't be seen


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