Analysis of New Steel Bohler M398

Code of The West Survival said:
M390 is the wonderful steel for knives. Unfortunately, many "knife makers" ruin that during a knife making progress.
First, they hammer /forge the powder steel.
Second, they don't follow thermo treatment steps.

I have few knives like this. Not good enough.
I also have the factory made knives. Huge difference. Because they were made from the sheets.

M398 will have similar issues.
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If I’m not mistaken, the factory “forges” these steels down into sheets. Thy don’t spray powder into a sheet mold and sinter it.
 
Ocelot85 said:
I’m just curious who these knife makers are who forge and ruin M390 are, I didn’t know anyone did I’ve never seen anyone here mention it.
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I have forged CPM3V and D2 and that’s about as extream as I want to go. Funny thing is after forging the grain was amazingly fine, especially on the D2.
 
JTknives said:
I have forged CPM3V and D2 and that’s about as extream as I want to go. Funny thing is after forging the grain was amazingly fine, especially on the D2.
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I used to think forging these steels would ruin the grain structure. People much more knowledgeable than me corrected my lack of knowledge. The carbide volume, especially vanadium prevents the grain growth we see in simple steels. Even A2 is relatively immune to the effects we see from overheating simple steels.
 
Willie71 said:
I don’t know a single person forging these steels.
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I think it is good that you don't know. It means your circle is professionals only. I wish I could say about mine... way too many amateurs.
However, life is about seeing new things. Right? Sometimes good, sometimes bad.
It is what it is.
 
Code of The West Survival said:
In the conversations about M390... on this site... YouTube links. Also there are some videos on YouTube. M390... forged.
I know, it is crazy. I could not believe it. Some of these videos are not in English, so I don't know if it is helpful
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Alright well I appreciate the information, I'll make sure to let Bohler know that their are rogue blade smiths here and on youtube ruining "der deutsche große stahl".
 
Larrin said:
Your link is someone asking about forging it, there is no one even claiming to have done it in the thread.
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Post 3 in the link. It tells you just what I said. It is insane to forge it.
I joined the discussion to have a good time.
Most of you are arguing with an idea to resist. Resisting what?
Google information? YouTube "live forging /knife making" sessions?
If any of you are "knife makers" and you hammer /forge your powder steel, it is up to you.
Can you eat a burger with ice cream or ketchup only?
It is up to you.
I chose to have a good knife that is made properly from a steel that provides excellent performance.
Many people can make knives. Some of them make knives for 50 years! One day they learned that it wasn't right... but they will resist.

I am not preaching a rocket science. It is a general knowledge about carbides, chromium, etc. And powder steel.

It is a general knowledge among bigger companies, producers, etc. Joe Shmoe may hammer anything he wants. It makes no difference to me. He may chose to make it proper way. I will buy that knife.

Everyone is so upset if somebody has a different opinion. You don't know? Learn. Educate yourself.

M390 cannot be hammered or forged if you want to maintain a structure of powder steel.

It is a sin to do so. Call Bohler or any other bigger Bohler steel user.

It is too easy. There is no need to be so arrogant and attack people because they said something what you don't know.

It looks like you are a Gold Member of this site.

What does that mean? Everyone has to agree with you?

Really? There are more sites and more books available than you saw or red already.
 
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