×
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

Grade of Steel for Rollers

Grade of Steel for Rollers

Grade of Steel for Rollers

(OP)
Hello!
I am designing a rolling mill for cold reduction of non-ferrous metals, specifically phosphor bronzes with 8% tin or more.  The mill will be a 2-Hi design with 24" of usable length on the rollers.  Their thickness has yet to be determined, as does the material they will be made from.  I think that 4140 would ideal, but I'm wondering if I could get away with 1045.  Both are available locally.  There also is a heat treating facility nearby, and I would like some opinions on case hardening of either alloy.  I assume that machining of the rollers would need to be performed before heat treatment, and I'm concerned about warpage and distortion, the slightest of which could render the rollers unusable and unable to be re-machined due to hardness.  Thanks for any advice!
Ryan

RE: Grade of Steel for Rollers

(OP)
Actually, I found some work rolls online and they are tool steel, I think.

RE: Grade of Steel for Rollers

I think you are right that you are better off to go with tool steel because 4140/1045 will suffer from quick wear. You can carburize them to get surface hardness up but still not a good idea because later you may want to grind them to another size. Also, you can do final machining after heat treatment to avoid distortion. I know it is hard but that is the way to do it. Tooling is expensive investment.
 

RE: Grade of Steel for Rollers

D-2 tool steel is commonly used for mill rolls.

RE: Grade of Steel for Rollers

Ryan,

Neither 1045 nor 4140 is appropriate for this type of service.  Proper cold work tool steels such as D2, A2, etc. are the standards to begin the selection process.

RE: Grade of Steel for Rollers

For large diameter rolls they are usually cast and of a tool steel like composition.
There is a chapter on this in an ASM handbook.

= = = = = = = = = = = = = = = = = = = =
Plymouth Tube

RE: Grade of Steel for Rollers

A tool steel similar to H13 with a higher carbon content has successfully been used for very long lifecycles. 'Good' usually = 'expensive'. You might look into http://www.sfsrolls.com/index.aspx
 

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