316LN thermal expansion properties
316LN thermal expansion properties
(OP)
To all,
Thanks for the forum. I am trying to help with a cryogenic design using 316LN plate. The thermal expansion of the plate may be an issue in a rotating, low RPM, environment.
We are trying to determine what the coefficent is so we can model the stress and design requirements of the components. The temperature would be a maximum 0°C to LNG temperatures.
There is some thought that the thermal expansion coefficent is not linear below 0°C to LNG temp.
Procurement is going back to the plate manufacturer now but I thought I would ask the forum.
Any help or guidance is appreciated.
Regards,
Davidsteel
Talk To Other Members
RE: 316LN thermal expansion properties
They show the expansion curves as:
Expansion; LT - L68 / L68 with all Austenitic listed being between
0.0021 and 0.0022 at -200°F
There was a good article on the web concerning INVAR piping that had some TE data on SS. For some reason I didn’t bookmark it and can’t find it now. The article was from Japan
RE: 316LN thermal expansion properties
The values for 316 SS are reported to about -350 deg F, at this temperature the value of thermal expansion is 8.0 x 10^-6 in/in deg F. At -200 deg F, the value is 8.25 and at 0 deg F, the value is 8.4. The source is Peckner and Bernsten.
RE: 316LN thermal expansion properties
Michael McGuire
http://stainlesssteelforengineers.blogspot.com/
RE: 316LN thermal expansion properties
A couple other sources gave me these webpages for info.
I smacked my head about the NIST site. Never thought to try there.
I hope you like these.
http://cryogenics.nist.gov/NewFiles/316SS.html
http://www.eng-tips.com/viewthread.cfm?qid=33662
http://nt
Regards,
Davidsteel