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Thermal expansion of Alluminium

Thermal expansion of Alluminium

Thermal expansion of Alluminium

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

RE: Thermal expansion of Alluminium

Go to www.matweb.com where you can find cte numbers for polymers and AL.

RE: Thermal expansion of Alluminium

Polymers will all be substantially higher.

As mentioned Matweb will help as will 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.

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RE: Thermal expansion of Alluminium

(OP)
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.

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