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

Magnetic Permeability of 303 Stainless Steel

Magnetic Permeability of 303 Stainless Steel

Magnetic Permeability of 303 Stainless Steel

Is it possible for the magnetic permeability of 303 stainless steel to rise after it is machined, allowing you to feel resistance when you pass a magnet over the material?

RE: Magnetic Permeability of 303 Stainless Steel

we have found the same problem.  Does 303 stainless rod become magnetic after machining. If so, what is the allowable magnetism.

RE: Magnetic Permeability of 303 Stainless Steel

Type 303 and other 300 series austentic stainless steels will be magnetic after cold work. The equilibrium crystallographic phase for these materials is austenite or face centered cubic, which is not ferromagnetic. Plastic deformation will cause a deformation induced phase change to martensite, which is body centered tetragonal and ferromagnetic.

Machining can cause sufficient deformation at the surface to cause noticeable magnetic permeability. This condition can probably be corrected by taking lighter final machining cuts.

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


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