×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

*
*
*
*

Thanks. We have received your request and will respond promptly.

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

Tempering issue - - Pipe Size 4”, Sch-120, ASTM A 335 Gr P5

thread367-464113

Tempering issue - - Pipe Size 4”, Sch-120, ASTM A 335 Gr P5

Tempering issue - - Pipe Size 4”, Sch-120, ASTM A 335 Gr P5

(OP)
As per ASTM A 335 Gr P5 min tempering temperature is 675deg.C.
Vendor submitted Material Test Certificate with tempering carried out at 750 deg.C.

Fluid service - Hot slurry at 300 deg.C

Would like to know if the material being proposed by vendor is acceptable or not ?

RE: Tempering issue - - Pipe Size 4”, Sch-120, ASTM A 335 Gr P5

The temper prvided is not so atypical for P5. however, it may produce a hardness that will be detrimental to your pipes\'s longterm life in your slurry service.

What were the mechanical properties stated on the MTR and did you ask for a minimum hardness?


RE: Tempering issue - - Pipe Size 4”, Sch-120, ASTM A 335 Gr P5

I would take 750C as the max temp. Time matters too. If it was 1 hour, for OD 4'' pipe is fine. if 4hour or longer, you may need to worry about the extra carbides that can decrease impact, and strength. b.t.w, a min of 675C is to get rid of any possible martensite.

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

Resources

Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now
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