New .100" AEB-L Arrived

Oh man wish I would have known, I just ordered 2 big sheets of the .118

Is the other stuff from coils or is it all cut as it made?
 
I noticed the .100 AEB says the full sheet is only 11” wide. Is this corect or a typo?
 
JTknives said:
Is the other stuff from coils or is it all cut as it made?
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I'm sorry I missed your question.

None of our AEB-L except the .040" has been coiled. The steel you ordered came out of the rolling mill, was cut to length and packed in shipping crates.

Chuck
 
Perfect, thanks. Looking forward to using it.
 
Is there any issue with warping when using cold rolled steel vs hot rolled? I'm trying to decide between AEB-L and 440-C which are similar but it looks like your 440 is hot rolled and more expensive.
 
All AEBL warps when heat treated. I had a nice long conversation with uddaholm at blade west. Thy stopped by my table and where impressed my AEBL knives and stackes of 15n20. But yeah it has to do with the grain direction. And the direction it runs through the sheet. Thy did not know why it was prone to warping. The sheet of .190 I got from chuck was great stuff to work with. It was a 12”x24” I think and half the knives where cut along the 12” direction and the rest where cut along the 24” direction. The 12” long knives came out laser stright. But all the shorter knives that where cut along the 24” length bowed like a son of a bitch.
 
JTknives said:
All AEBL warps when heat treated. I had a nice long conversation with uddaholm at blade west. Thy stopped by my table and where impressed my AEBL knives and stackes of 15n20. But yeah it has to do with the grain direction. And the direction it runs through the sheet. Thy did not know why it was prone to warping. The sheet of .190 I got from chuck was great stuff to work with. It was a 12”x24” I think and half the knives where cut along the 12” direction and the rest where cut along the 24” direction. The 12” long knives came out laser stright. But all the shorter knives that where cut along the 24” length bowed like a son of a bitch.
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have you experienced 440c having the same problem?
 
Typical rolling can cause can cause those problems as it can cause different properties in the three different directions to the rolling direction. In the tool steel business it's a pain ! This is minimized by cutting the sheet into squares . These squares are then rolled at 90* directions at each pass. There has been comment about this on the forum. IIRC Niagra Metals has done this for some knife steels ! The easiest way to deal with this is to heat to 1200* for 2 hours for a sub-critical anneal.
Normal making of sheet or strip includes forming it into a roll which introduces stresses which will tend to warp the blade during HT.
 
When I was talking to the uddaholm guys I asked about thicker 15n20 and AEBL. Thy said thy would roll it to any thickness I wanted. I said ok what’s the catch. He said I would need to buy 5,000lbs. And there’s the rub lol
 
JTknives said:
All AEBL warps when heat treated.
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Not all AEB-L warps during heat treating. We've been testing AEB-L to determine the core issue of warping. I will post the results when we are finished.
JTknives said:
When I was talking to the Uddeholm guys I asked about thicker 15n20 and AEBL. Thy said thy would roll it to any thickness I wanted.
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The following information was verified this morning. The thickest 15N20 their new mill can roll is .236". The thickest AEB-L is .196" which is what we purchased.

Chuck
 
JTknives said:
But yeah it has to do with the grain direction. And the direction it runs through the sheet. Thy did not know why it was prone to warping. The sheet of .190 I got from chuck was great stuff to work with. It was a 12”x24” I think and half the knives where cut along the 12” direction and the rest where cut along the 24” direction. The 12” long knives came out laser stright. But all the shorter knives that where cut along the 24” length bowed like a son of a bitch.
Click to expand...
If that would be consistent from sheet to sheet it would solve LOTS of the warping issues with AEB-L for sure. I order all my AEB-L from AKS in 1" to 2" wide strips either 11.5" or 23.5" long, and most don't warp so bad, while others I've had a problem. Chuck, do you know which way the strips are cut from the larger sheet?

mete said:
The easiest way to deal with this is to heat to 1200* for 2 hours for a sub-critical anneal.
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Mete, is this for AEB-L? If so, perhaps a good move would be to stack all my AEB-L strips in the oven, hold for 2 hrs at 1200F and let slowly cool to help with warping issues?

Ken H>
 
mete said:
Normal making of sheet or strip includes forming it into a roll which introduces stresses which will tend to warp the blade during HT.
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The AEB-L was never coiled. It came off the rolling line, was cut to length and boxed.
Ken H> said:
Chuck, do you know which way the strips are cut from the larger sheet?
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We try and cut every piece with the grain.

Chuck
 
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