Thermal expansion of Alluminium

[sdavfc]

I am looking for a polymer that will have as near as possible the similar coeffiecient of thermal expansion rate as alluminium. Any suggestions ?

 

[plastx]

Go to

http://www.matweb.com

where you can find cte numbers for polymers and AL.

 

[patprimmer]

Polymers will all be substantially higher.

As mentioned Matweb will help as will

http://www.rtpcompany.com

A material with a lot of reinforcement will get as close as possible.

Also beware that polymers can be quite non linear in their thermal expansion.

Regards

eng-tips, by professional engineers for professional engineers
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.

 

[nbucska]

It should be posiible to design around.


Plesae read FAQ240-1032
My WEB: <

http://geocities.com/nbucska/>

 

[sdavfc]

It looks like my customer will now change the design of the part and glass filled PEEK of which we mould quite a bit already.

Thanks to all who replied.