Metal analysis

F

Flatlander bowie

Joined
Jun 23, 2020
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I was recently given 100# of paper cutting blades. Each is 4'x6"×.5". I want tonknownhownI can get a actual metallurgical analysis of them. I have been using 1084 from Aldo for about 5 years and plan to stick with it but if these blades are A2, D2 or W2 I would like to use them.
I know, stick with known steel. SonInwoukd be willing to shell out a couple bucks to find out what they are. Anybody have xp with these or know of someone who can test a sample?
 
Id be curious who all is recommended to for testing of steel. I know Bloodroot blades has it done for all of their stuff as they use salvaged steel. So it can't be too expensive.
 
Flatlander bowie said:
I was recently given 100# of paper cutting blades. Each is 4'x6"×.5". I want tonknownhownI can get a actual metallurgical analysis of them. I have been using 1084 from Aldo for about 5 years and plan to stick with it but if these blades are A2, D2 or W2 I would like to use them.
I know, stick with known steel. SonInwoukd be willing to shell out a couple bucks to find out what they are. Anybody have xp with these or know of someone who can test a sample?
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4'x6"×.5" = 1210mm x 152mm x 12.7mm ?? If this is correct .....the should look like this one ? If true , good steel is ONLY close to cutting edge .............
MQrx64T.jpg
 
They do look like that but one solid piec . They do not appear to be laminated or bimetal. I can etch with ferric tomorrow and check tho.
They came of a 1970s vintage paper cutter from the printing department of s local tech school.
 
Flatlander bowie said:
They do look like that but one solid piec . They do not appear to be laminated or bimetal. I can etch with ferric tomorrow and check tho.
They came of a 1970s vintage paper cutter from the printing department of s local tech school.
Click to expand...
Yes , they are bi-metal .It would be very expensive to make them ALL hard steel .Sorry ...I just make one competition size chopper from blade like that .Probably I grinded more then four pounds steel to get to 7mm spine :D I can t think what else can be done from this kind of shape they have ?
B1bRseP.jpg

r7A6GEU.jpg

THWSOR3.jpg

This is work rest for one of my grinders made from them.You can clear see line where hard steel begin..............
pVEUtWU.jpg
 
Flatlander bowie said:
They do look like that but one solid piec . They do not appear to be laminated or bimetal. I can etch with ferric tomorrow and check tho.
They came of a 1970s vintage paper cutter from the printing department of s local tech school.
Click to expand...
Try them with file or try to drill holes .............
 
On this one I don t know for sure .Big paper factory is half mile from me .I know lot of people there ...Most older blade are D2 , D3 steel .Newest /some of them/ are HSS steel.If you can read on them who is manufacturer you can find which steel they used..
I m in Europe ..........
 
A guy on YouTube " luvthemknives "is one that has access to a pmi tester (steel analyzer),I think he has an email on yt? That you could message him
 
I have a couple I was given years ago. Mine seem to be solid steel. I was told by the fellow who gave them to me (he worked in the paper mill) they were D2. So far I haven't come up with a use for them.
 
Stacy E. Apelt - Bladesmith said:
I have a couple I was given years ago. Mine seem to be solid steel. I was told by the fellow who gave them to me (he worked in the paper mill) they were D2. So far I haven't come up with a use for them.
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They are solid steel BUT only on edge side have D2 or other hardenable steel , Stacy .What s the point to make them complete from D 2 steel if you can t use it ? Waste of good steel , and costly . Look how they are mount on machine..............very little room for resharpening .
I think that hardenable steel is welded something like this ...clever !
406SnAC.png
 
I was given a couple of similar (but shorter) pieces a number of years ago and was also told they were solid D2. IIRC it wasn't very fun to forge by hand.
 
weo said:
I was given a couple of similar (but shorter) pieces a number of years ago and was also told they were solid D2. IIRC it wasn't very fun to forge by hand.
Click to expand...
Grind them , like me :D I whish /if that was true/ to have some from solid D2 steel.....
 
If there is a company in your area that does welding inspection you could call them. Look on the website for things like PQR testing. Give them a call and if you hit them when they are slow maybe you will get a good deal on a couple of PMI shots. If you do it makes sure you have the areas you want tested clean down to shiny metal and it would be best to number them as well.
 
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