aluminum airline

[68 short step]

i know that SS is what alot of people run for airline, but could aluminum also be used?

[6772owner]

I asked this same question awhile ago and I believe that the general consesus was that it would work just fine with the proper fittings.

[Str8Ugly]

same with copper line also

[Shane]

Copper is not recommended for automotive applications due to work hardening issues associated with vibration.

It's not a matter of IF it will fail, it is a matter of WHEN.

[billdo]

i beg to differ copper was used on tractor trailors for the longest time and i have tried it and also works with push style fittings type k is soft and can be bent by hand i do not thing it will crack from vibrations

[XXL]

Originally Posted by billdo

i beg to differ copper was used on tractor trailors for the longest time and i have tried it and also works with push style fittings type k is soft and can be bent by hand i do not thing it will crack from vibrations

You may have had a good experience, but there are metallurgical properties that are very well known by science. Shane has commented, at a high level, on one of the issues with copper. We can go into molecular discussions to prove his statement if you'd like.

[BACKYARD88]

Originally Posted by XXL

...but there are metallurgical properties that are very well known by science. Shane has commented, at a high level, on one of the issues with copper...

Looks like I'll be doing some searching because this def. sounds like something I'd be interested in reading about.

[XXL]

Originally Posted by BACKYARD88

Looks like I'll be doing some searching because this def. sounds like something I'd be interested in reading about.

Look for cyclic pressure fatigue, stress-corrosion cracking, and ultrasonic resonance fatigue.

While the root cause of each type is different, the end results are very similar... there is a significant grain coarsening in the tubing material, which leads to pitting, which leads to pin-holing, and blowout.