Brands comparable to busse

Czechmate said:
Pics or it didn't happen... ;):D

I regret getting rid of my chopweiler & ratweiler. :thumbdn::grumpy::(
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Here ya go:

swamp3.jpg

swamp2.jpg
 
Well since there's now an answer about the Charpy testing, which explains a lot, IMO, what other standardized tests could be devised that tests the steel alone rather than geometry and hardening process?

I really think one of the most impressive things is that theres a no questions asked, unconditional guarantee. Even if modded by someone other than the company. That's unheard of to have that kind of warranty.

Jerry:

I'm curious about the max hardness that can be reached and how thin it can be taken while not chipping out whittling wood and whatnot. Not necessarily a big ass zombie chopper but more like a regular 4.5 in edc that can be used hard by a guy who uses some common sense when cutting.
 
Jerry Busse said:
You are correct sir!

Some folks think that we are hiding the impact toughness of INFI. . . . I can assure you that that is not the case.

Standard Charpy impact tests require a piece of raw stock near 1/2" x 1/2" square bar by 2.1" long. It would need to be ground down to approx. .400" x .400" and then notched. That doesn't mean that you must have that size in order to perform the test, it just means that you need that same size stock in order to compare to other published tests that used the standard size. We don't have 1/2" thick INFI, so running the test with the standard sample size at this time would be impossible.

We were given calculated Charpy impact numbers that were generated by the metallurgists we worked with from the mill. The numbers we were given were impressive, but they are, nonetheless, speculative and not based on standard sized stock.

We are currently working on a solution to this.:thumbup:

Let's Drink!:thumbup:

Jerry:D
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And there you have it folks! :cool: As has been mentioned, Jerry is not someone that doesn't back up what he claims. Time to lock the thread now. :D

Gator97 said:
Well, for those who advocate "stop asking for data and do your own testing" thing, may be you can elaborate or perhaps post a video of you lugging around 1/2x1/2x2.1", grinding it to 0.4, notching it and getting charpy value :)
And while at it, may be someone can share how to do "your own" composition testing which would be great. I still can't find acceptably priced lab in SF bay area to perform composition analysis on some of the steels I am interested in, 500$ per test sounds a bit too rich for my taste.
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Excuses, excuses... :p In reality, some of the older testing equipment can do smaller test samples, but they're not terribly standard anymore. The one we had at my university could do down to 1/4" x 1/4" (but still needed to be about 2" long). There was a formula we used to then calculate what the "standard" Charpy value would be. It wasn't perfect, but would get you pretty close.


Let's Drink!!! :thumbup: :D

ETA: Sweet M9 there Cobalt!!! :cool:
 
bodog said:
Well since there's now an answer about the Charpy testing, which explains a lot, IMO, what other standardized tests could be devised that tests the steel alone rather than geometry and hardening process?

I really think one of the most impressive things is that theres a no questions asked, unconditional guarantee. Even if modded by someone other than the company. That's unheard of to have that kind of warranty.
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well, aside from Busse kin not sure. And really, if it was me I would not offer that. People do stupid things. I know...I was one of them.
 
SpyderPhreak said:
And there you have it folks! :cool: As has been mentioned, Jerry is not someone that doesn't back up what he claims. Time to lock the thread now. :D



Excuses, excuses... :p In reality, some of the older testing equipment can do smaller test samples, but they're not terribly standard anymore. The one we had at my university could do down to 1/4" x 1/4" (but still needed to be about 2" long). There was a formula we used to then calculate what the "standard" Charpy value would be. It wasn't perfect, but would get you pretty close.


Let's Drink!!! :thumbup: :D

ETA: Sweet M9 there Cobalt!!! :cool:
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Is that what it is? I got it a while back and it is a great handling blade.
 
Yeah it was blued so I did not know it was an LE until I vinegared the crap out of it. notice the temper line. kinda cool
 
Finally, a reasonable answer. I'll be interested in the solution, if/when they can figure it out. But if it doesn't come in 1/2", it might not be possible.
 
Here is the Late Ron Hood with an SHBM in the amazon posing with three cute little Caymans ;)

junglevideo9.jpg
 
Cobalt said:
I have a local place that does it for me and I bring the knives thru the back door and pay them cash, lol. They charge me very little per knife compared to your number. I think I paid $80 to have my knives tested 2-3 years ago and I am sure they would not charge me much more than that today. But they do not typically offer that service. It's only because I schmooz them and bring pizza

That was $80 for two knives.
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Wow, dude you're so lucky... I'd bring pizza and drinks to boot, but can't find a place that'd agree on that :) I'll ping you later on PM, may be I can send you a few blades to test?
 
Jerry Busse said:
You are correct sir!

Some folks think that we are hiding the impact toughness of INFI. . . . I can assure you that that is not the case.

Standard Charpy impact tests require a piece of raw stock near 1/2" x 1/2" square bar by 2.1" long. It would need to be ground down to approx. .400" x .400" and then notched. That doesn't mean that you must have that size in order to perform the test, it just means that you need that same size stock in order to compare to other published tests that used the standard size. We don't have 1/2" thick INFI, so running the test with the standard sample size at this time would be impossible.

We were given calculated Charpy impact numbers that were generated by the metallurgists we worked with from the mill. The numbers we were given were impressive, but they are, nonetheless, speculative and not based on standard sized stock.

We are currently working on a solution to this.:thumbup:

Let's Drink!:thumbup:

Jerry:D
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I'm good with that. Thank you for taking the time to answer.
 
Gator97 said:
Wow, dude you're so lucky... I'd bring pizza and drinks to boot, but can't find a place that'd agree on that :) I'll ping you later on PM, may be I can send you a few blades to test?
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sounds good. I plan on going there to test a few more and I have not been back in 2 years so that would be a good test to see if they will still allow me.
 
One thing I do want Busse to do if they indeed do this is to purchase cpm3V samples and have them tested side by side at multiple hardnesses from 58 to 62. Maybe 59 and 61. I'd like to see S30V tested by someone other than crucible as well.
 
Camber said:
Weren't some of the MOABS over .400 thick?

Quick google search: http://www.knifehunter.com/Busse-Custom-Shop-Knife-MOAB

Seems like a .4 x .4 cube would have been more than possible, or am I missing something?
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You are correct my friend. :thumbup: It would have been very possible to do had we been looking to do Charpy tests at the time.

That stock was a very limited run that we have already run through. Unfortunately, we don't have any scrap pieces left from the few bars that we had.

That is, however, one of the possible solutions that we are looking into. We are checking to see if we can run a few more bars at the heavier thickness on our next run.

Until then. . . . .

Let's Drink! :thumbup:

Jerry :D



.

.
 
It's possible if one really wants too.

Charpy tests can be done on samples not as high and it should not that hard to extrapolate back to the standard size to be able to compare it to standard charpy numbers of other steels.

All you need is another steel sample with a known Charpy number and with the same dimensions as your Infi sample.

Let's say you got a standard piece of D2.
2 inch long .4 inch wide and .4 inch high. You measure a Charpy number of X.
Now you take the same D2 but a sample of 2 inch long .4inch wide and only .2 inch high. Your Charpy number for this smaller sample might only be X/4. Thus we determined that the smaller size Charpy has to be multiplied by 4 to extrapolate to the standard size.

Knowing that we take Infi with the smaller dimension 2x.4x.2 measure Charpy, get number Y and multiply it by 4. Done.

For more accuracy you could measure a couple of different steels at the 2 different hights.
 
Jerry Busse said:


You are correct my friend. :thumbup: It would have been very possible to do had we been looking to do Charpy tests at the time.

That stock was a very limited run that we have already run through. Unfortunately, we don't have any scrap pieces left from the few bars that we had.

That is, however, one of the possible solutions that we are looking into. We are checking to see if we can run a few more bars at the heavier thickness on our next run.

Until then. . . . .

Let's Drink! :thumbup:

Jerry :D



.

.
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Hmmm, maybe a special run of ASHBM's at 0.4 inch thickness? ;)
 
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