Anyone in 'plastics'?
Discussion
LimaDelta said:
Is there a PVC-type material which is suitable as a stainless steel replacement, in terms of strength in tension/compression, stiffness, hardness, shear strength, machinability, thermal stability, chemical resistance etc?
If you want all those properties in a cheap thermoplastic the answer is definitely no.However if we knew more about the part shape and end use there may well be something suitable.
LimaDelta said:
Nobody said cheap...
Other than a couple of wild stabs in the dark no-one's suggested owt; without more of a clue what it is and what you want it to do you won't get any more useable help. Broadly speaking you won't be able to replace a stainless steel component with a plastic one of the same dimensions because the physical properties are very different.LimaDelta said:
Is there a PVC-type material which is suitable as a stainless steel replacement, in terms of strength in tension/compression, stiffness, hardness, shear strength, machinability, thermal stability, chemical resistance etc?
Machinability and chemical resistance, yes.The other factors no.
dudleybloke said:
What grade of stainless are you trying to replace?
410, or as near as is manageable.I realise a direct replacement is not possible, And I do not want to copy all of the attributes of the steel - for instance the lower electrical and thermal conductivity of the plastics are an advantage in this application. As are the increased resistance to corrosion or chemical attacks.
A reduction in strength is a necessary trade-off in this case.
I think something like Duratron PBI is looking like the best bet but I have a meeting arranged this month with some experts in engineering plastics who can hopefully advise on something suitable.
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