Cryogenic CTE for Steels?

• Jun 14, 2001

• #2

AlanD

Materials

Apr 2, 2001

63

AU

-420 degrees celcius, is a little bit low. I think you've made a typographical error.

 

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• Jun 14, 2001

• Thread starter
• #3

jkratner

Aerospace

Jun 14, 2001

2

US

Sorry, I meant -420 F not C!

 

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• Jun 21, 2001

• #4

BLN

Materials

Nov 15, 2000

56

US

I would be surprised if any one has any test data for CTE of stainless steel that close to absolute zero. I only know of 2 fluids go that cold and I assume since you're in aerospace, your fluid is LH2.

Marshall Space Flight Center, being the propulsion directorate, might have information that could help you. I know they have done extensive testing with LOX, but I'm not sure of information dealing with LH2, because of the explosive hazards associated. They have a website. The dealings I've had with the people in their metallics branch, they are very helpful.

 

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• Aug 22, 2001

• #5

Guest

If you have not found a sastisfactory value, you might check the data compiled by the cryogenics group at NIST.

http://cryogenics.nist.gov/

There is a link to materials properties data (Themal Conductivity, Specific Heat & Linear Expansion) at cryogenic temperatures for commonly used materials. There is also a copy of a paper describing the database project and its use under publications.

 

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• Sep 27, 2001

• #6

Guest

I use a materials database with temperature dependent properties, it not free but its fairly comprehensive. try

http://www.jahm.com

 

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