×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

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

Wear of Stainless steel against brass in corrosive environment

Wear of Stainless steel against brass in corrosive environment

Wear of Stainless steel against brass in corrosive environment

(OP)
I'm trying to determine the best materials to use for an application that resemebles a chain in a track.  The chain (designed like a bike chain) material will be under heavy loading (torsional) and will be riding in the track.  I was thinking of using stainless steel (like 440C) for the track and covering the chain links which are already steel with a brass shoe of some sort on the mating surfaces. All this will be in a ocean environment so corrosion is also a big issue...
I'm thinking that the SS will be abraded by the breakdown of it's oxide layer and subsequenetly loose corrosion resistence.
Any ideas for materials and or surface treatments that would help?  

RE: Wear of Stainless steel against brass in corrosive environment

Could you use a polyethylene or Teflon shoe instead?

RE: Wear of Stainless steel against brass in corrosive environment

Here is a better material (UHMW) as mention above  for the track than 440C.  
You can also get Sprockets made from this material.
You are correct in say  that the 440C will wear under your conditions.
Chains don't like to be twisted.
What is the chain material?
We use a similar product on some very highly loaded drag chains

http://www.plastic-products.com/convey2.htm

RE: Wear of Stainless steel against brass in corrosive environment

(OP)
I was concerned that a polymer would not be dimensionaly stable enough.  We'd like to keep the tolerences pretty tight.  The chain material is a high strength steel I think 4140.  The chain portion is a vertical conveyor which is linked and is pulled through the track near vertically.  There we be a significant moment on the links of the chains carrying weight which will cause both drag and wear.  

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



News


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