Helical Compression Springs in Hydrogen Service

Sullivan4874 · Jul 20, 2021

What are the recommended materials for wetted helical compression springs in hydrogen service? I've read that Elgiloy and MP35N are good. What about Inconel X-750 with precipitation heat treatment (4 hours @ 1200F)? Any others?

Thanks!

WKTaylor · Jul 20, 2021

'Hydrogen service'...

Room temp? High temp? Cryogenic?

Pure H2... or compounds of hydrogen H**['sour']?

Regards, Wil Taylor
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Sullivan4874 · Jul 20, 2021

Pressure - up to 1500 psi
Temperature - 0 to 120F
Hydrogen concentration - 5% to 100% with the balance being clean natural gas

Thanks!

Jul 21, 2021

Inconel 718 might also be an option. It is used for critical fasteners in nuclear, so it has been studied to death.

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Helical Compression Springs in Hydrogen Service

Sullivan4874

Mechanical

WKTaylor

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Sullivan4874

Mechanical

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