×
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

Static and Fatigue properties of 21-6-9 Cres Tubing

Static and Fatigue properties of 21-6-9 Cres Tubing

Static and Fatigue properties of 21-6-9 Cres Tubing

(OP)
Looking for some static and fatigue properties for 21-6-9 Cres tubing.  The information needs to be public domain and referenceable.

Thanks for your help.

jetmaker

RE: Static and Fatigue properties of 21-6-9 Cres Tubing

heres a little information that might help.

A specification that defines 21-6-9 tubing is AMS 5562. I assume you have access to this. UNS number is S21904. I don't have access to the AMS spec any more so I can't say if it gives the mechanicals.

Getting the fatigue number is a tough one. My Carpenter book gives a yield strength of 52 - 62 Ksi for an annealed bar depending on size and test direction. There is also some data on cold drawn wire but again nothing on fatigue. suggest you contact carpenter directly.  http://www.cartech.com/

A few years back I used the following source for some 304L and 21-6-9 tubing in the 2" and 3" range. Don't know if this sales rep. is still there.
Future Metals Inc.
10401 State Street
Tamarac FL 33321
800-733-0960
Margaretanne Fineo
www.futuremetals.com

RE: Static and Fatigue properties of 21-6-9 Cres Tubing

AMS 5562 is solution treated tube. Min Ftu 90 ksi, min t2 50 ksi. e = 45%.

AMS 5561 is cold drawn tube (either seamless or welded). Ftu 142 - 162 ksi, t2 120 ksi. e = 20%.

No fatigue props in ASMH. Could try Atlas of Fatigue Curves or SAE Fatigue Design Handbook. Note that 21-6-9 is aka Nitronic 40.

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