Steel test results

As mete stated, steel specs are ranges. If the L6 from Admiral is within their claimed ranges, then there is no room for complaint other than a questionably flexible definition of what consitutes L6. The complaint would be with how they state their analyses/ranges. If they won't tell you the ranges, then don't buy. If this steel is outside their specs, then they should stand behind it or they suck. If they claim an AISI spec and won't make good on outlying steel, then they suck. Notwithstanding that we have a certain obligation to know what we're buying by asking the right questions. if you go back to someplace that's burned you, then you suck....;)

It's not necessarily a matter of whether it's "bad steel", but that it's not what one expects from an understanding of what constitutes L6. It might make a fine knife.

There are two ways to deal with this:
1) Buy from somewhere that will guarantee the steel is within specifications they will tell you up front. That usually means a primary manufacturer and not a middleman who will buy on a spot market from many different manufacturers or other middlemen. "Typical lot analysis" may be a warning flag in itself. I would be interested to know if a place like Admiral even has test facilites onsite or gets "actual lot analyses" when they buy.

2) Buy enough at one time that you can economically send it for analysis so you know what you have. Have an agreement that if the steel is unacceptable it can be returned. Then spend the time to work out the best heat treat for that large batch of steel and work off of it for some time. Buying non-domestic steel one bar at a time means there will be variability, especially in today's steel world. That's a reality that won't get better. We can bitch all day long and it won't change the fact the burden is on us to be smart.

Like Caffrey states in more polite language, we are a pissant little segment in a very large steel market. We have to learn to fit in, because there is little incentive for them to serve us. That means we have to be smart and know what questions to ask. An option other than commisioning the production of a batch with known chemistry is to search for a large supply of existing steel with a desirable analysis. Telling a company to keep their eyes open for 5 tons of single-batch steel with xxxxx specs will perk up a few ears in some places. Then, a number of makers could go together and buy that. Perhaps this is a good business opportunity for someone here with an entrepeunurial spirit. ;) Mace Vitale did just that with the 1084. Did everyone take good advantage of that?

If you buy one steak a week from the supermarket, you take what you get if it tastes like crap. If you seek out and buy the best beef, the probability of a good steak increases, but you have to expect to pay more. If you're the supermarket, you get a little more say when you buy tons of beef each week. That's capitalism, folks. Caveat emptor.
 
fitzo said:
As mete stated, steel specs are ranges. If the L6 from Admiral is within their claimed ranges, then there is no room for complaint other than a questionably flexible definition of what consitutes L6. The complaint would be with how they state their analyses/ranges. If they won't tell you the ranges, then don't buy. If this steel is outside their specs, then they should stand behind it or they suck. If they claim an AISI spec and won't make good on outlying steel, then they suck. Notwithstanding that we have a certain obligation to know what we're buying by asking the right questions. if you go back to someplace that's burned you, then you suck....;)

It's not necessarily a matter of whether it's "bad steel", but that it's not what one expects from an understanding of what constitutes L6. It might make a fine knife.

There are two ways to deal with this:
1) Buy from somewhere that will guarantee the steel is within specifications they will tell you up front. That usually means a primary manufacturer and not a middleman who will buy on a spot market from many different manufacturers or other middlemen. I would be interested to know if a place like Admiral even has test facilites onsite or gets "actual lot analyses" when they buy.

2) Buy enough at one time that you can economically send it for analysis so you know what you have. Have an agreement that if the steel is unacceptable it can be returned. Then spend the time to work out the best heat treat for that large batch of steel and work off of it for some time. Buying non-domestic steel one bar at a time means there will be variability, especially in today's steel world. That's a reality that won't get better. We can bitch all day long and it won't change the fact the burden is on us to be smart.

Like Caffrey states in more polite language, we are a pissant little segment in a very large steel market. We have to learn to fit in, because there is little incentive for them to serve us. That means we have to be smart and know what questions to ask. An option other than commisioning the production of a batch with known chemistry is to search for a large supply of existing steel with a desirable analysis. Telling a company to keep their eyes open for 5 tons of single-batch steel with xxxxx specs will perk up a few ears in some places. Then, a number of makers could go together and buy that. Perhaps this is a good business opportunity for someone here with an entrepeunurial spirit. ;) Mace Vitale did just that with the 1084. Did everyone take good advantage of that?

If you buy one steak a week from the supermarket, you take what you get if it tastes like crap. If you seek out and buy the best beef, the probability of a good steak increases, but you have to expect to pay more. If you're the supermarket, you get a little more say when you buy tons of beef each week. That's capitalism, folks. Caveat emptor.


Well said, fitzo. As for your first paragraph, what I listed as what Admiral says is their chemistry for L6 is quoted exactly from their website. They don't have a range that it could be. Thus, there's plenty of room for complaint there.
I agree, if you know how to use the stuff, it'll probably make a great knife.
 
Yeah, Phillip, I wasn't criticizing you, because I know exactly what you mean about the crap manufacturers and suppliers alike post, single numbers. My point is that we need to ask for the ranges, and if they won't supply them, then be suspicious. (Or, ask the question, "Is this within stated specifications for the accepted AISI ranges for this steel?") What I question is whether they even know what they're selling, and "typical lot analysis" is possibly a lazy copout that we get sucked in on. "L6" sounds so much better than "nickel-bearing crapshoot."

Edited to add: this may be another incentive to buy known good steel from a manufacturer and suffer the additional cost or labor of flattening it in the case of round L6 from Crucible. If you know it's not within typical specs for L6, you can't tell the customer it's L6 with any kind of ethic. Some buyers don't mind if you tell them 'it's mystery steel, but it makes a good blade." Others will just walk away. Which leaves us with choices....
 
BTW, you could always call it "L6M" (for "modified") and make up some pseudo-mystical BS about how the reduced alloy elements actually contribute to a better blade bacuse it's closer to a pure carbon steel....:rolleyes: :jerkit: :D
 
I think I will stick with crucible for my steel. They seem to care about what they sell and dont mind talking to you about it. I'm sure alot of you will have this info already but for those who don't this is a replie to email I sent to crucible a while back about buying directly from them:

We do indeed sell small quantities to the general market through our Dallas Sales Office (1 800 365 1168)
You will find the staff there to be most interested in and knowledgeable of the knife business.
Scott Devanna is the sales manager and is also a collector of custom knives.
We stock numerous thicknesses and grades in Dallas and offer full and half sheets as well as custom cut pieces.

Best of luck
RTB

Dick Barber
315 470 9219 office
 
does anyone know how tight the specs are for the cpm steels
i know what there listed as but just how close do you think they come
 
There's an 800 number in the post above yours, Butch. Pick your favorite steel and call 'em and ask if they'll give you the ranges. We'll all learn something, then, one way or the other.... ;)
 
Fitzo, the range I gave you is the official AISI range [unless they,ve changed the range recently and I doubt that]. So they didn't come close !
 
mete, I didn't doubt you at all, and I understand what you're telling me. I agree that's not what we'd L6, but still, Admiral is calling it L6. Whazzup with that? Intentional or accidental?

I can never figure out how one can find differing "AISI" specifications such as this one for L6:

http://www.efunda.com/materials/all...ol.cfm?ID=AISI_L6&prop=all&Page_Title=AISI L6

While it's not terribly different than what you posted, it IS a little different. How in the heck does that happen?

I'd really appreciate any light you can shed on this.
 
fitzo said:
There's an 800 number in the post above yours, Butch. Pick your favorite steel and call 'em and ask if they'll give you the ranges. We'll all learn something, then, one way or the other.... ;)
oo i guess you want me to do something other then just ask questions:D
so far steve potts from crucible got me this link and http://www.crucibleservice.com/eselector/prodbyapp/tooldie/t&dapptitle.html
to get me started but i have to call up some one that might be able to find me the spread for any given steel they make
butch
 
mete, I am aware that in industry wording is everything. I just looked over Admiral's claims and I can't find where they say it's "AISI L6", just "L6".

Is there such a thing as "creative terminology" in the steel industry, like in so many other businesses, to afford a little fudge latitude? This is sort of what I was getting at before, and didn't word it well at all. Sorry for any confusion.

I'm not insisting Admiral is doing anything of the sort, but I am wearing my foil hat and I don't trust businesses. :D
 
For what it's worth, I emailed "sales@admiralsteel.com" and provided a link to this thread. I'm sure they would welcome the opportunity to respond, and I, for one, would be very interested to see their response (as I'm sure would many others following this thread).
 
As a rule I don't comment on threads dealing with suppliers, but I will make an exception because I think the problem of blade steel composition needs to addressed.
fitzo said:
There are two ways to deal with this:
1) Buy from somewhere that will guarantee the steel is within specifications they will tell you up front.....

2) Buy enough at one time that you can economically send it for analysis so you know what you have.....
There is a 3rd option. Buy blade steel from a supplier who has the steel independently tested. I've been told Jeff Carlyle has his steel tested. I know Kelly Cupples has the steel he sells tested. We have our steel tested also. We plan to post the composition of the steel on our website. Here are some examples:
http://www.alphaknifesupply.com/pictures/1080-577424-s.gif
http://www.alphaknifesupply.com/pictures/1080-508892-s.gif
http://www.alphaknifesupply.com/pictures/1080-687598-s.gif

It is interesting to compare the mill test results and independent test results. Most of the time the tests are close, occasionally they vary significantly. Here is an example of a steel where the tests were very different:

____________Fact___Indep____Fact___Indep
Carbon______1.080__0.950____1.100__0.753
Chromium____1.200__1.161____1.180__1.149
Copper_______--____0.114____0.160__0.133
Manganese___0.290__0.275____0.300__0.285
Molybdenum___--____0.031____0.050__0.042
Nickel_______--____0.141____0.110__0.168
Phosphorus__0.017__0.014____0.011__0.010
Silicon_____0.250__0.225____0.280__0.257
Sulfur______0.006__0.006____0.005__0.004
Tungsten____1.290__5.951____1.360__7.014
Vanadium____0.230__0.188____0.225__0.185


We are going to cut more coupons from different areas of the sheet and send them in for testing. I want to know if the composition of the steel is uniform throughout the steel and if the results of the first test can be duplicated.
 
One of the problems is that L6 is made in different parts of the world and there are different specs also .So while there is AISI L-6, that is listed as JIS [japanese] SKS51 and DIN [german] 1.2714 etc and may have slightly different specs but is still "in the ball park" . Sometimes it's confused by cross reference tables that also reference L-6 as JIS SKT4 and DIN 1.2713 [haven't found the chemistry for that yet].....However there's no excuse for the actual chemistry being so far from any L-6 spec.For the blade maker he must have consistancy so he can forge and heat treat the same for each batch.
 
Chuck Bybee said:
......There is a 3rd option. Buy blade steel from a supplier who has the steel independently tested. I've been told Jeff Carlyle has his steel tested. I know Kelly Cupples has the steel he sells tested. We have our steel tested also. We plan to post the composition of the steel on our website.

Chuck, I applaud your insight and decision to test your steel. I apologize if I offended by excluding suppliers like you and Kelly as an option for verified steel. i really was thinking of larger distributors when I made my comments, those where knife steels are a small portion of the business.
 
We, as knifemakers, are now selling to collectors that have savy, a lot of it. One of the first, or second questions is always "what's the steel". It bothers me that I may have been lying to them about certian steels (albiet unknowingly). It's time for me to start buying from people like Chuck, and thankfully I already do business with Kelly.
How is this composition test administered? Is it long and drawn out, involving chemicals and the like?
I'm guessing it's not a device that's portable, and can be taken to shows to "prove" the authenticity of the steel makeup.
Anyway, if nothing else, I hope it can get resolved so that I can use proper heat treating techniques for each steel.
 
fitzo said:
I apologize if I offended by excluding suppliers like you and Kelly as an option for verified steel.
Mike, no apology is necessary.
rhrocker said:
How is this composition test administered? Is it long and drawn out, involving chemicals and the like? I'm guessing it's not a device that's portable, and can be taken to shows to "prove" the authenticity of the steel makeup.
The tests shown above were all done with an ARL 3460. I was told the machine is about $55,000. Each test is software and is an additional charge. The software costs can exceed the price of the machine.

At a scrap yard I saw a hand held machine that looked like a radar gun. A worker pushed the front of the gun against the titanium and the composition was displayed on an LCD panel on the back of the gun. I started to get excited about buying the machine until the worker told me it cost $35,000! :eek:
 
Interestingly, just today, I was following a link in a trade journal I receive and it was about a portable weldment analysis device. Using it could easily take the guesswork out of "Mystery Steel" Got to be pricy though. Maybe this is the Radar Gun thingy that Chuck saw.

Here a link about it. http://www.niton.com/XLiXLt800.asp
 
I also meant no offense to Mr. Bybee or Mr. cupples or any other supplier but my point for buying directly from crucible is that they produce what they sell so they are much more likely to be consistant with the specks and are actually making somewhat of an attempt to cater to our industry and provide some support.
 
Great thread guys. It's interesting to learn this kind of stuff at this point in my travels along the knifemaker trail. It solidifies my thoughts that even though I don't make great knives yet (might never do it) if I want to really make some good stuff I have to take near total control over my process.

Fitzo's talk of buying a large lot of steel of known qualities and working up the right heat treat for it makes all the sense in the world, assuming you have the cash to buy it and the place to store it. This rings true to a conversation I had with Ricardo Velarde at last year's Solvang show. Ricardo told me he bought an entire billet of BG42 so that he could get it cut in thicknesses he needs as an integral maker instead of the mill's general practice of making it in sheets as is their normal practice. I understand he's not looking to part with any of it either:(

Ricardo makes Awesome knives!

This thread also makes me think even more seriously that after I recover from just ordering a pair of VFDs and some other KMG accessories from Rob Frink for my existing KMGs as I reconfigure the drives, an oven must be my next major shop addition.

So far I've been mostly grinding randomly accumulated 01, mostly vintage, but this thread also reinforces that I should be buying my steel from a known source, whether Crucible or an verified independent like Chuck.

Thanks for sharing such valuable info guys.
 
Back
Top