Whats the test to determine aluminium from titanium?

[Jones]

http://www.bikepro.com/products/metals/hardness.shtml

I was assuming they didn't want to mash whatever it was to test it

hang on, your suggestion of scratching it with a nail to test surface hardness is EXACTLY the same as my bikepro test, IE different ways of testing surface hardness! except my links to industry standard tests & yours is "scratching it with a nail"

yeh I think my suggestion is a serious suggestion jez it would probabily help if you told us what the part is?

Exactly thats what I was saying if you dont mind damaging it, its pretty easy to test if you don't want to damage it, its slightly more complex

Its easy in work you just give it to the metalurgists they look at it through their weird scope thing ( technical term ) line up some coloured lines and tell you exactly what it is

Then wait until you've finished welding it and tell you its something else :?

 

[Tallpaul]

Sickening as the water displacement test was, it's non destructive and accurate. All you need is a set of kitchen scales. As a point of reference the value for aluminium would be nearer 2.5 so it should be reasonably clear which metal it is...

 

[Stick Legs]

Find the original price tag!

Sorry. I'll get my coat.

 

[Marvel]

If you tap it don't they ring in a different key.
or
Take all the steel bits off and Ti will float away whereas the Al wont

Maybe :roll: