Machinists: help me identify this Aluminum! :)

[Gravy]

Here's an interesting puzzle. Help me identify this piece of aluminum plate.

12.25"x12.25"x2.75"

Stamped on one side is "QTL"
"R" circled

and "18" in a Hexagon

then one face is stamped
"FBCN"

and "10" Circled

All the faces seem perfectly flat. Almost like it was used as a rule to measure other things.

I don't have any certs. Perhaps it's worth something to a hobby machinist.

 

[zukijames]

Did you ever figure this out

 

[Gravy]

Nope.

 

[Gravy]

nobody?

 

[I Lean]

It's what is technically known to insiders of the industry, as "recyclable".

 

[prerunnerwannabe]

It should be one of these three.
6061
7075
qc7
That probably didn't help at all

 

[Gravy]

It's what is technically known to insiders of the industry, as "recyclable".

It should be one of these three.
6061
7075
qc7
That probably didn't help at all

Ha that's what Karl said. or he said it might be 7071

 

[prerunnerwannabe]

At any rate, that juck is worth quite a bit!

 

[B2-Bomber]

at $0.64/lb scrap, a 12.25x12.25x2.75 piece of aluminum is 40.44lbs, and worth about $25, i'd figure a hunk that big to be worth more than that weird