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Propellant corrosion for 405 and carbon steels?

Propellant corrosion for 405 and carbon steels?

Propellant corrosion for 405 and carbon steels?

(OP)
Anyone has info. regarding the compatibility of 405 and carbon steels with rocket propellants such as hydrazine, mono methyl hydrazine (MMH), nitrogen tetroxide (NTO) and nitrogen tetroxide with 3% nitric acid (MON3)?
Thanks in advance!

RE: Propellant corrosion for 405 and carbon steels?

Ben,
There is a NASA publication on this, but I can't find my copy.
No steels, that is for sure. Nothing that can rust.

Look here
https://standards.nasa.gov/documents/nasa

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, Plymouth Tube

RE: Propellant corrosion for 405 and carbon steels?

(OP)
Thanks Ed! I have an alloy with regular corrosion resistance between CS and SS, I am guessing such an alloy could not work well in rocket fuel. Protective coatings could be helpful.

RE: Propellant corrosion for 405 and carbon steels?

Plain carbon steel will cause the hydrazines to catalytically decompose, and the level of dissolved iron in the fuels will rise over time.

Nitric acid and NTO will etch/dissolve the steel.

A fairly good discussion, with a plethora of references, is available in Eckhardt Schmidt's Hydrazine and its Derivatives. If you are in the business of storing rocket fuels, this is your book.

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