×
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

6418

6418

(OP)
Can 6418 be austempered?

RE: 6418

If you are referring to the steel grade specified in SAE AMS 6418, the answer is yes it will respond to austempering, however, the transformation time to bainite will likely be greater than 24 hours, which usually renders the process unsuitable.  Highly alloyed steels, especially those with considerable amounts of nickel, are generally not used for austempering due to this phenomenon.  These grades have been created specifically to stabilize the austenitic phase so that they can be quenched into martensite, and then subsequently tempered to produce high strength and high toughness.

RE: 6418

From what I could find on AMS 6418 (aka as Hy-Tuff steel), and depending on size (thickness), I would say that it can be austempered. The Nickel content is in the range of 1.65 to 2%.

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