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Re: CPM MPL-1 sprint run please

Posted: Mon Jun 18, 2018 2:56 pm
by Stuman
Deadboxhero wrote:
Mon Jun 18, 2018 9:55 am
Stuman wrote:
Mon Jun 18, 2018 7:59 am
guywithopinion wrote:
Sun Jun 17, 2018 5:56 pm
Stuman wrote:
Sun Jun 17, 2018 1:58 pm
It’s very similar to ZDP-189
That's actually what seemed interesting too. Based on the numbers you gave, ZDP-189 is still almost 75% iron. And people talk about how ZDP isn't technically a steel. That thing is close to iron not even being the main ingredient!
Yeah it’s something that requires investigation but I have very limited tools and equipment not like Spyderco who will have a huge myriad of testing equipment. I do have a Rockwell C scale machine and knife making equipment but nothing like what Spyderco could test this steel with. There are a few steels I want to get around to making and testing with different heat treats and this one just went past those and made it top of my list. I’d love it if Spyderco actually done some testing on this steel because from what I can see it has the potential to be a fantastic knife steel.
Well, they don't have any in barstock and aren't making any either, it's only available in powder form for clading.

They had rolled it in the past but it was ALL cracking very badly so they haven't revisited it.

By the way, they still get some cracking issues with s110v.

But no where near as bad as s125v which is why it kinda went away but at least there is barstock in s125v leftover.



Sounds like MPL-1 is by far the most difficult for them to process
okay if they have it in powder form I’ll make my own cannaster billets and go from there. I’m going to have to do some research first because I’m pritty sure it’s not like making canister Damascus like I do with 1095 powdered steel but the issue of it cracking under red heat may be attributed to its carbon content how ever there are ways around the cracking issue I think. Time will tell.

Re: CPM MPL-1 sprint run please

Posted: Mon Jun 18, 2018 3:04 pm
by Stuman
Stuman wrote:
Mon Jun 18, 2018 2:56 pm
Deadboxhero wrote:
Mon Jun 18, 2018 9:55 am
Stuman wrote:
Mon Jun 18, 2018 7:59 am
guywithopinion wrote:
Sun Jun 17, 2018 5:56 pm


That's actually what seemed interesting too. Based on the numbers you gave, ZDP-189 is still almost 75% iron. And people talk about how ZDP isn't technically a steel. That thing is close to iron not even being the main ingredient!
Yeah it’s something that requires investigation but I have very limited tools and equipment not like Spyderco who will have a huge myriad of testing equipment. I do have a Rockwell C scale machine and knife making equipment but nothing like what Spyderco could test this steel with. There are a few steels I want to get around to making and testing with different heat treats and this one just went past those and made it top of my list. I’d love it if Spyderco actually done some testing on this steel because from what I can see it has the potential to be a fantastic knife steel.
Well, they don't have any in barstock and aren't making any either, it's only available in powder form for clading.

They had rolled it in the past but it was ALL cracking very badly so they haven't revisited it.

By the way, they still get some cracking issues with s110v.

But no where near as bad as s125v which is why it kinda went away but at least there is barstock in s125v leftover.



Sounds like MPL-1 is by far the most difficult for them to process
okay if they have it in powder form I’ll make my own cannaster billets and go from there. I’m going to have to do some research first because I’m pritty sure it’s not like making canister Damascus like I do with 1095 powdered steel but the issue of it cracking under red heat (Forging heat) may be attributed to its carbon content and that’s why the chromium content is high how ever there are ways around the cracking issue I think. Time will tell. Looking at ZDP alloy content which is similar to MPL-1 if hitachi ran into similar issues then they obviously found a go around in this case. It could of been almost the same as crucibles MPL-1 and they ran into similar issues so turned down the carbon and alloy content. who knows ? and it’s just a poke in the dark but one can only guess really.