Armor core San mai?

T

Tkrocky

Joined
Sep 6, 2013
Messages
486
i just ordered a bar of this from chad Nichols for a few folder orders, however, I cant find any info on the properties of the armor core? Anyone know more about it?
 
At blade I asked Chad about the armor core center material. It is ballistic armor plate (see below). Unless you are referring to the stainless core, which was either elmax or CTS-xhp.

I have one older bar with a CTS-204P core I am saving for a special project.
 
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It is Carpenter Aermet340 steel. I heard it was one of the toughest material in the world right now the heat treat is very simple 1850F 20 min and plate quench = 53HRC no tempering need. The toughness are from shitload of cobalt and nickle.

The edge holding properly won't be very great tho.
 
Did he change materials? or has he used multiple center cores for the armor core san mai?
 
shqxk said:
It is Carpenter Aermet340 steel. I heard it was one of the toughest material in the world right now the heat treat is very simple 1850F 20 min and plate quench = 53HRC no tempering need. The toughness are from shitload of cobalt and nickle.

The edge holding properly won't be very great tho.
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53 RC? That’s terrible! I’m a little disappointed now...
 
Chad definitely knows a thing or two about those high-end steel... there are not many people in the world who has capability of pattern welding high alloy PM or titanium. Aermet is expensive and if it suck as a knife blade I doubt he gonna use it.

At least your customer would be excite knowing his blade are made of the same material to high-end military air craft landing gear haha :p:D.
 
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Just because someone is able to market and sell a steel combination does not make it a good blade steel. I regularly get into a (sometimes heated) discussion about using military steels for knives. Besides the tactical appeal, it is always less desirable than the standard knife steels. 1095, or 5160, would produce a better edge. That said, to day people say, "Rc 53, OMG, that's terrible!" Knife blades have been in the lower Rc 50's For centuries. The one most of us had as a kid pre-1990 probably was Rc 53-55. The evidence of that on older knives is that the blade is half the width from repeated sharpening as the blade lost it sharpness and needed to be re-sharpened.
 
Me too don't think Aermet would be a very great material for a knife blade but there is always a demand for something with extraordinary cool factor and as far as it can be sold it will be made... I will make and sell it too if I can actually!

Jerry Fisk has forged damascus from scrap steel from the bombing of Pearl Harbor same as Bob Kramer using meteorite damascus in his $20,000 kitchen knife... Are those having any practical metallurgy advantage? definitely no...

Sometime people just want to buy story. And you will barely seen any complaint about the lacking of performance because no one really use those knife.
 
Called in and got it changed to an xhp-core billet before it shipped. I’m sure it’s cool and everything, but a key reason I even make knives is to get that higher edge of performance over factory or production knives. Correct me if I am wrong, but As I understand it, the RC scale is somewhat exponential, so 53 on the RC scale is just way to low to be acceptable, especially when there are better steels that will give you the same look.

shqxk said:
Chad definitely knows a thing or two about those high-end steel... there are not many people in the world who has capability of pattern welding high alloy PM or titanium. Aermet is expensive and if it suck as a knife blade I doubt he gonna use it.

At least your customer would be excite knowing his blade are made of the same material to high-end military air craft landing gear haha :p:D.
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Stacy E. Apelt - Bladesmith said:
Just because someone is able to market and sell a steel combination does not make it a good blade steel. I regularly get into a (sometimes heated) discussion about using military steels for knives. Besides the tactical appeal, it is always less desirable than the standard knife steels. 1095, or 5160, would produce a better edge. That said, to day people say, "Rc 53, OMG, that's terrible!" Knife blades have been in the lower Rc 50's For centuries. The one most of us had as a kid pre-1990 probably was Rc 53-55. The evidence of that on older knives is that the blade is half the width from repeated sharpening as the blade lost it sharpness and needed to be re-sharpened.
Click to expand...
 
Tkrocky said:
53 RC? That’s terrible! I’m a little disappointed now...
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I have machete /3.5mm/ from USA armor plate steel ......works for me , tough and unbreakable.....Rust just to see water , don t hold edge too long , but do job on three day fishing and knowing that my son can t break it is is more then enough to me :D
 
Stacy E. Apelt - Bladesmith said:
Just because someone is able to market and sell a steel combination does not make it a good blade steel. I regularly get into a (sometimes heated) discussion about using military steels for knives. Besides the tactical appeal, it is always less desirable than the standard knife steels. 1095, or 5160, would produce a better edge. That said, to day people say, "Rc 53, OMG, that's terrible!" Knife blades have been in the lower Rc 50's For centuries. The one most of us had as a kid pre-1990 probably was Rc 53-55. The evidence of that on older knives is that the blade is half the width from repeated sharpening as the blade lost it sharpness and needed to be re-sharpened.
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If I'm stuck in the jungle for a long time I will swap-trade mu super-duper HSS knife for knife made pre-1980 ASAP :)
 
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