u/MAlipioC

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Hello, I would like to know if anyone knows a good source for bare copper tubing suitable for the following operating conditions:

Working pressure between 50 and 60 bar; Operating temperature down to -78.5 °C.

Thanks

Our team is making an hybrid rocket, and we wanted to try and use dry ice to cool down the N2O tank. Anyone have some tips or designs to do it? Im having a little trouble finding stuff