×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

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!
  • Students Click Here

*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

Jobs

High temperature 718 inconel springs

High temperature 718 inconel springs

High temperature 718 inconel springs

(OP)
I wish to use inconel belville washers at up to 600 C for preloading a flange gasket seal.  Does anyone have any data on time dependant effects at this temperature for 718 Inconel?  I'm not sure of the heat treatment, but they are as received from Solon mfg.

Regards,
Jason

RE: High temperature 718 inconel springs

Alloy 718 is used as an aerospace fastener at temperatures up to 1200F.

For creep data at temps up to 898K, see:  M.C. Chaturvedi (U. Manitoba), "Creep Deformation of Alloy 718," in the book "Superalloy 718.  Metallurgy and Applications," E.A. Loria (ed.), TMS, (Warrendale, PA; 1989).

RE: High temperature 718 inconel springs

The most authoritive, comprehensive, free source of this type of materials information can be found in "MIL-HDBK-5", titled "METALLIC MATERIALS AND ELEMENTS FOR AEROSPACE VEHICLE STRUCTURES".  It contains test data curves for the alloy and temperature you are interested in.  It is available for free download at http://astimage.daps.dla.mil/docimages/0001/73/51/MILHBK5H.PD5. If the above URL gives you trouble go to http://astimage.daps.dla.mil/quicksearch/ and enter "MIL-HDBK-5" in the "Document ID" field.  The document is currently at Revison H (select "MIL-HDBK-5H" from the the list of documents to download).  It is a huge file, but well worth the download time if you need/use this type of information.  You'll need the (free) Adobe Acrobat Reader to view the document.    

Another excellent compilation of information (although definitely not free) is the "Aerospace Structural Metals  Handbook" (see: http://mpho.www.ecn.purdue.edu/MPHO/CRDA_Handbooks/asmh).

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!


Resources