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.


Fatigue Properties of 1.6582 (AISI 4140 V.S 1.6582)

Fatigue Properties of 1.6582 (AISI 4140 V.S 1.6582)

I'm looking for a material to substitute our 4140 shafts. These shafts are working with 12000 rpm. Now we use of 4140 (quenched and tempered).
Is it possible to use 1.6582 instead of 4140???
Is Fatigue properties and core toughness of 1.6582 better of 4140???


RE: Fatigue Properties of 1.6582 (AISI 4140 V.S 1.6582)

Think about the factors in fatigue, geometry, steel internal cleanliness, and strength.
Higher strength helps, but only if the other two factors area also in your favor.

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, Plymouth Tube

RE: Fatigue Properties of 1.6582 (AISI 4140 V.S 1.6582)

Some pictures and drawings of your arrangement and the cracked/broken shafts could possibly result in even more helpful replies.

RE: Fatigue Properties of 1.6582 (AISI 4140 V.S 1.6582)

4340 steel, is a high strength steel which can be supplied quenched and tempered to provide high strength and impressive notch toughness and ductility because of nickel as an alloying element.

The 4340 can be excellent shaft material, if you require it, because of the deep hardenability it possesses. You can find fatigue properties for comparison and the 4340 will typically win out.

RE: Fatigue Properties of 1.6582 (AISI 4140 V.S 1.6582)

Thans 4 ur comments

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!


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