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From Alfiniti's website:

Hmm...Why is 6061-T8 listed under both active and inactive tempers? Was it deactivated in 1989 and then re-activated in 2017? I wonder if they make 1.9" thick wall tubing...

Thanks. I'll look into those two companies.

Got it. Thanks for the explanation. It doesn't seem like this alloy of interest is not common. I've contacted Alcoa to see if they can guide me, but I don't think this is going to happen.

Thank you for the suggestion. I've contacted a forging company that will look into it, but I'm not expecting too much at this point.

Probably why I couldn't find a lot of info! It's strange that MatWeb came up with the T8 alloy when I entered the specific properties in their search. Is this just an alloy that some vendor decided to propose but never produced? I guess I'll have to stick with T6 for now...

Thanks MagBen for clarifying! Not too much info out there about this temper for 6061.

T851 isn't listed on MatWeb. This is why I'm inquiring on this forum. If anyone has any reference books with properties of 6061-T851, that would be appreciated.

Yes, 10% is a big difference for us. So are there any property differences between T8 and T851?

Would anyone know the mechanical (tensile yield) and electrical property (electrical resistance) differences between the following aluminum alloys: 6061-T8 6061-T851 I believe the last two numbers (51) designates the type of stress-relieving, but would that affect the properties as compared to...

I confirm the 8.1% drop when looking up resistivity references for the different tempers. Thanks for explaining the mechanism behind this drop.

So with repeated temp cycling, the T6 temper will eventually become 0 temper? That would explain why resistance is lower. Thanks for clarifying!

I have a strange observation and was wondering if any experts here would provide an explanation, if possible. We have a product made from an aluminum 6061-T6 cylinder which has to be inductively heated via AC power coils. We try to maintain constant current output by varying the output...

I've been trying to run a model which comes up with "General Solver Error". I think it has to do with insufficient memory. I've tried bumping up the AMK MEMORY setting to 1400, but it will only accept up to 1200 (not enough). Any hints on how I could get around this???