×
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

Diferences beetwen SA-387 Gr 22 Cl 1 / SA-387 Gr Cl2

Diferences beetwen SA-387 Gr 22 Cl 1 / SA-387 Gr Cl2

Diferences beetwen SA-387 Gr 22 Cl 1 / SA-387 Gr Cl2

(OP)
I have a technical question about diferences beetwen SA-387 Gr 22 Cl 1 / SA-387 Gr Cl2.

I read ASME SEC II-A, and I didn´t found some informetion about diferences beetween classes.

I apreciete your help, and I aprecite you tell me where i can read in some code or standard about diferences beetween classes?

RE: Diferences beetwen SA-387 Gr 22 Cl 1 / SA-387 Gr Cl2

Section II can be notoriously silent on the specifics of heat treatment.

The lesser spotted Class 2 refers to quench-and-temper condition. Review the mechanical properties table for differences.

"Everyone is entitled to their own opinions, but they are not entitled to their own facts."

RE: Diferences beetwen SA-387 Gr 22 Cl 1 / SA-387 Gr Cl2

These are fundamentally different alloys. Grade 12 is 1% Cr 0.5% Mo while Grade 22 is 2.25% Cr 1% Mo. You should read the ASME or ASTM material spec for this type of information.

RE: Diferences beetwen SA-387 Gr 22 Cl 1 / SA-387 Gr Cl2

See Table 2 and Table 3 in SA-387. Table 2 is for Class 1 plates, Table 3 for Class 2.

RE: Diferences beetwen SA-387 Gr 22 Cl 1 / SA-387 Gr Cl2

(OP)
Thanks to everybody for anSwer. I already reviewed table 2 and table 3 in SA-387.

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