What's up with this file's steel?

As others said it's a variant on tungsten-alloyed low alloy steels. In the vein of O7, F2, Blue #1, Blue Super, V-Toku1, 1.2519, 1.2562, etc.
 
Thank you for replies.

I'm just looking for advice on which abrasive should I use for this or maybe if I should temper it in the oven before grinding?

I also got an offer from local knife maker to anneal it, and then quench and temper once I'm done grinding and shaping it.
Only issue with it is that he is kinda far away, and this process would require me to visit twice and I barley have spare time.

Larrin said:
As others said it's a variant on tungsten-alloyed low alloy steels. In the vein of O7, F2, Blue #1, Blue Super, V-Toku1, 1.2519, 1.2562, etc.
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I didn't expect to get an answer from Larrin himself :D

Do you think that this steel can make a decent or knife?
Would you go for single large fixed blade or 2 smaller fixed blades?

I would really apreciate your opinion on it.
 
BillZee said:
Remember.......your making a knife to have fun.
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True, thank you for remiding me.

It's easy to go overboard since I want this to turn out good, but I agree I forgot the reason why I decided to try this.
It's my first knife. It doesn't have to be perfect.
 
EatingSarma said:
I didn't expect to get an answer from Larrin himself :D

Do you think that this steel can make a decent or knife?
Would you go for single large fixed blade or 2 smaller fixed blades?

I would really apreciate your opinion on it.
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The steel could be a knife, sure. You may save yourself work by using steel that is better known in terms of what heat treatment is best. Steel is cheap.
 
EatingSarma said:
So I asked a bit more about that file and even asked local knife maker (ex Yu area) for tips.

So:
1. This file is even older than I initially thought. It is from the time of former Yugoslavia, I said it's definitley over 30 years old, but it's over 40 actually.
2. Everyone says tools were of much higher quality back then.

Then I went back to the file, and this file actually still has it's bite, especially at the edges and non corroded areas (rust is only on surface).

The knife maker gave me advice to anneal it first since this steel at this hardness will be a chore to grind and if I do something wrong I could still mess up the heat treat.
I also got advice how to quench and temper, but I don't have the forge or any place to heat it to the temperature where I can go into the quench.

So I'll try to do it like the way I originally planned, if I mess it up, then I'm going to anneal it and basically do everything I want to do, and once I'm done - take it to the company that heat treats stuff for you.
It will cost me, true, but they will quench and temper it either to HRC you want or HRC they see as appropriate if you didn't state anything. One thing they will ask you is - "What steel do you have?"
-I think saying it's similar to O7 would be fine, I did more research and either OW3 or c.6441.9 would be fine, they were both called Č6441. They were used a lot, especially for tools that required high hardness and wear resistance.
This steel was even used for dies and punches.

Slovenia and Macedonia mainly produced steels like that, these steels were mass produced and their composition varied a lot. Instead of using various steels like we see today, the guys back in the day would just tweak the composition of the steels they already produce instead and/or heat treat it to another hardness.
Another role was played by politics, as communist propaganda wanted to use their own materials and were against import.
So, in a nutshell, instead of using let's say D2 for dies and A2 for punches, you had two O7 modifications heat treated to different hardness.
With that being said, all consistency goes through window and you have the elements off the charts like we can see here with numbers all over the place.
But as long as it worked for them - it's all good.

At the other hand, when it comes to this file being a file, if it was new it'd actually be a really damn good file.

All tips are welcome tho.
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I grind lot of knives from Yugoslavia made file .Can you take one picture from file where mark of manufacturer is stamped ?
 
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