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Ok what is this Metal

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John Stevenson:
Aluminium bronze.
Turns OK but is a total bitch to drill and tap, wants to squeal and break taps.

Uses :- Valve guides,  fingers for steadies, giving to people you don't like with a drawing of a part with thirty seven 10BA holes.

John S.

DavidA:
Rub it on a grinder.  If it is titanium you'll get a shower of brilliant white sparks.

As for ally bronze.  The grade I seem to get usualy turns of in a shower of small chips,  not the curly swarf you show.

Oh yes, if it is ally bronze it won't braze easily due to the aluminium content.

Dave.

p.s.  If you're feeling technical,  make a (very) precise 1 cm cube and weigh it;  also very precisely.  the mass will help to identify it.

kvom:
Might it be beryllium copper, which is used a lot in aerospace?

No1_sonuk:

--- Quote from: DavidA on May 29, 2011, 03:19:30 PM ---p.s.  If you're feeling technical,  make a (very) precise 1 cm cube and weigh it;  also very precisely.  the mass will help to identify it.
--- End quote ---
Or do it non-destructively:
Use water in a measuring jug to measure its volume (assuming it's safe in water), then weigh it and calculate the density from that.

bp:
I would hazard a guess that its not Titanium, which is silvery grey in colour, a bit like steel only darker.  Obviously lighter in weight than steel as well.
I'm with Bogs its some sort of bronze
cheers

Bill Pudney

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