Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

316LN thermal expansion properties

316LN thermal expansion properties

316LN thermal expansion properties


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.


RE: 316LN thermal expansion properties

I don't have specific data for 316LN SS, but my data from USS and AIRCO show that the expansion curve for Austenitic SS’s  is pretty straight down to -200°F and then a slight flattening out below that point.

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

To add, the thermal expansion for 316 SS is not linear. The graph of thermal expansion versus temperature shows a slight curvature for most of the 3XX series stainless steel between -400 to 2000 deg F.

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.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close