Alumec

[Herbertkabi]

Got piece of ALUMEC yesterday, already tried to mill, was easy and looks good ... and really strong!
What is consist of?
Anyone knows more about this alloy?

Cheers,
Herbert

http://www.uddeholm.ee/english/files/alumec-english.pdf

https://www.alcoa.com/mill_products/...rochure_EN.pdf

[Herbertkabi]

Found something:
ALUMEC 89
Typical Yield Strength (ksi)(1,2) (Thickness of Plate) 80 - 75 - 63 (1" - 4" - 12")
Typical Hardness(1,2,3) (Thickness of Plate)170 B - 150 B (1" - 12")

7075-T651
Typical Yield Strength (ksi)(1,2) (Thickness of Plate) 73 - 48 (1" - 6")
Typical Hardness(1,2,3) (Thickness of Plate) 150 B - 120 B (1" - 6")

6013-T651
Typical Yield Strength (ksi)(1,2) (Thickness of Plate) 54 - 49 (1" - 8")
Typical Hardness(1,2,3) (Thickness of Plate) 120B

Also wonder that 7075 was developed by Japanese Sumitomo Metal in 1936. and was used for the Zero fighter's air frame.
That I did not know

Cheers,
Herbert

[Herbertkabi]

Looks like none interested, perhaps "metallurgy" is wrong forum?
OK, does not matter ...
I met this Alumec totally by chance. My good friend visited me, he did need help with one tiny steel part of some kind of pneumatic tool, this part was broken, looks like was over-hardened when made. OK, I can do a new one, but wont mill steel on my milling machine. Thought that may be 7075 will durable enough. Tuesday I was in local machining shop and consulted with guys about. They gave me a piece of Alumec 89 with promise that this is the strongest aluminum alloy what available at this moment. At least in our area. Returned to home I started with. Making a drawing of this part was bigger headache than expected but ready it is - done!

cheers,
herbert

This is 54mm long, 8mm thick, hole 4mm.

[clivefx]

Interesting. I gotta look into this alloy. I want to make a lathe and this might be a better material for the bed than 7075. I gotta find a source for it.