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PostPosted: Fri Sep 07, 2007 5:43 pm 
Retro Guru
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Joined: Thu Jul 12, 2007 8:19 am
Posts: 2037
Location: Swansea
scant wrote:
Jones wrote:
scant wrote:
http://www.bikepro.com/products/metals/hardness.shtml


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



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" :lol: :lol: :lol: :wink:

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


Exactly :lol: 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 :wink:

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

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


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PostPosted: Fri Sep 07, 2007 5:50 pm 
Old School Grand Master
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Joined: Thu Jan 25, 2007 9:37 am
Posts: 4916
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...


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PostPosted: Fri Sep 07, 2007 6:42 pm 
Gold Trader
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Joined: Sat Jul 29, 2006 11:14 pm
Posts: 3833
Location: Somerset
Find the original price tag! :lol:

Sorry. I'll get my coat. :wink:


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PostPosted: Fri Sep 07, 2007 8:31 pm 
Devout Dirtbag
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Joined: Fri Jan 19, 2007 5:22 pm
Posts: 135
Location: Ringwood, Hants
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:


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