Gentlemen 1

[Lovison]

If 316SS has a k of 0.0000090 @ +500 Deg. F what
would the k be at -500 Deg. F. Are there any
charts covering such materials and cold values
relating to the coefficient of materials? Wayne E. Lovison
service-parts@naglepumps.com

 

[nbucska]

Impossible -- It is less than absolute zero <nbucska@pcperipherals.com>

 

[Lovison]

Yes I'be told ABZ is -469 max. I just picked a random number without thinking (shame on me).

Use -300 Deg. F and acceptable my apologies.

What I want to see is if k (contraction/reduction applies)rather than expansion (thermal) and how to determine the value for the cold reduction.

Wayne E. Lovison
service-parts@naglepumps.com

 

[eigenstate]

You might want to check the NIST Cyrogenics Group material properties website:

http://cryogenics.nist.gov/NewFiles/material_properties.html

Christopher Bass cdbass@indiana.edu
Indiana University Cyclotron Facility

 

[Burdy]

Lovison, when you've worked it out from the NIST site perhaps you could publish the data as a FAQ!!
B