×
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

Chloride Stress Corrosion Cracking

Chloride Stress Corrosion Cracking

Chloride Stress Corrosion Cracking

(OP)
Refer to ASM Handbook Vol. 11, chloride plus moisture contribute to stress-corrosion cracking (SCC) of high- strength steels.

Refer to API RP 571, carbon steels and low alloy steels are not susceptible to chloride stress corrosion cracking.

Please advise me about the discrepancy in these documents.

RE: Chloride Stress Corrosion Cracking

If you go back and read the section that you got your statements from you will find that the difference comes when you define carbon and low alloy steel and high strength steel.  A value of f 160,000 ksi UTS is normally the break point used to differentiate the between the two families of steels.  API is talking about below 160,000 ksi and ASM is talking about above 160,000 ksi strength levels.

This topic gets complex rather quickly. Look at the FAQ's under the Welding, Bonding & Fastener Engineering Forum for more information. If that doesn't answer your question or need more information please post.

RE: Chloride Stress Corrosion Cracking

(OP)
unclesyd,

Thanks for the comment. I think you intend to specify 160 ksi instead of 160,000 ksi.

I cannot find such FAQ's under the Welding, Bonding & Fastener Engineering Forum. Could you please show me the link?

RE: Chloride Stress Corrosion Cracking

And everyone say's those Cosmic rays don’t affect people.

By the way if you find the 160,000 ksi steel let me know.

The 160 ksi is still a good number.

Check the references in  FAQ725-600.  I'll have to check the forum where I thought It was mentioned.

Sorry about that.

RE: Chloride Stress Corrosion Cracking

(OP)
I found the context in ASM Metal Handbook Vol.1 (10 Edition). High-strength carbon and low alloy steels have yield strengths greater than 250 MPa (40 ksi). This is far from tensile strength of 160 ksi as unclesyd's comment.

From ASM Handbook Vol.11, steels with yield strengths of approximately 1379 MPa (200 ksi) or higher are especially susceptible to SCC. However, SCC failures of mild steel and low-strength alloy steels are also quite common.

I would like to ask for the comment especially for chloride SCC in high strength steel. Please share your experience.

RE: Chloride Stress Corrosion Cracking

PAN

Thread725-95071 is quite informative.

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