×
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

NCG/Turpentine Handling (Metallurgy)

NCG/Turpentine Handling (Metallurgy)

NCG/Turpentine Handling (Metallurgy)

(OP)
When designing a separator to handle non-condensible gases and turpentine vapors (non-PSM) what is the recommended steel? Currently, our turpentine system uses carbon steel (of unknown manufacturing specs) and zero stainless anywhere but in piping. Can I get away with running 1040 CS? For context, the current system using carbon steel has been in place for over 50 years and has had minimal issues, I'm just unsure if standards have changed since the 70's. In my mind if it ain't broke don't fix it, but I'm curious to see what others have to say.

RE: NCG/Turpentine Handling (Metallurgy)

It looks that the the CS material isn't an issue as it has been in service for years.
Since no original design data, you may record the design record by confirming the process for the system, such as the detail process, equipment material selection, pressure and temperature, work scope, etc. for the future reference.

RE: NCG/Turpentine Handling (Metallurgy)

I would test some samples (removed and sent to a lab) for chemistry.
First, I doubt that it is 40 Carbon, that sounds high, and all of the welds will require pre-heat and PWHT.
Second it may be a low alloy steel with a bit of Cr in it.
In m any services even 0.25% Cr can really help performance.

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, consulting work welcomed

RE: NCG/Turpentine Handling (Metallurgy)

Hi,
My experience with resins and solvents (solvesso150, isoparar,kerosene) has always been Stainless Steel (304 L or 316 L).
Pierre

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