CTS40CP Question...

[JR88FAN]

Hey Guys.

First of all, I want to apologize if this is the wrong place to ask this question, but of all of the sub-forums this makes the most sense to me. The guys who work with and test steels.

Ask this question in "General" and I will get a bunch of opinion based on "what someone told me"

So here it goes:

I am very familiar with 440C and it's a really good all around EDC steel in my humble opinion.
What has the PM process and finer grain composition done for things like 440C's toughness and edge retention?

Lets say we go 61-62HRC on two identically ground blades (same edge geometry one is 440C the other CTS40CP)

I can't find much or anything on the interwebs regarding this info.

Thanks in advance, Alex.

 

[Willie71]

I've not worked with the steels you are talking about, but my experience with the PM steels is that they make a notable improvement in performance. Finer grain, better edge stability, even carbide distribution.

 

[JR88FAN]

I've not worked with the steels you are talking about, but my experience with the PM steels is that they make a notable improvement in performance. Finer grain, better edge stability, even carbide distribution.

Thanks for the reply.

So I guess that would translate into a noticeable improvement in edge retention and toughness over ingot 440C?

 

[jdm61]

Hoss said that he is a fan of CTS40P for kitchen knives.

 

[butcher_block]

Thanks for the reply.

So I guess that would translate into a noticeable improvement in edge retention and toughness over ingot 440C?

yes at the same hardness PM steels are tougher so by bumping up hardness you get better edge holding while only dropping toughness back to ingot levels say 2 points softer (i think that came out right

 

[Jrmysell]

yes at the same hardness PM steels are tougher so by bumping up hardness you get better edge holding while only dropping toughness back to ingot levels say 2 points softer (i think that came out right

Essentially you have 440C at 60 with X toughness and Y edge holding, compared to CTS40CP at 62 with X toughness and 2Y edge holding. Obviously not going to double the edge holding, but it will increase it while still having the same hardness.