Lost Wax CTE?

A long shot possible, but does anyone know the CTE for lost wax casting wax?
cheers
Dave

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On Wed, 11 Aug 2010 07:18:40 -0700 (PDT), dave sanderson

    I don't know what CTE means but it sounds as though you might be looking for Alex Tiranti's. If so, risk life and limb and try http://www.tiranti.co.uk/subdivision_product_list.asp?SubcategoryC&Subdivision --
Chris Edwards (in deepest Dorset) "There *must* be an easier way!"
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CTE is coefficient of thermal expansion. Its how much bigger a meter of a thing gets for a 1 degree rise in temp (usually, tho inches and stuff are also available ;) Been to Tiranti to buy wax for testing a 'thing' at work, but no detail info there.
Dave
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dave sanderson wrote:

1.7 x 10^-4 /K is a typical value, but it varies with the wax of course. Makers of good commercial waxes should have more accurate figures for their waxes available.
-- Peter Fairbrother
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Cheers Peter, that will be accurate enough. Main point is its significantly different from Titanium, and may warrant thermal controls when measuring masters.
Dave
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dave sanderson wrote:

Yes, it's quite high - you can get low expansion casting waxes, but these are usually more expensive, if nothing else (ie not sold as such).
-- Peter F

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