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.


Challenge: A216 Gr WCB to meet Stainless Steel ?

Challenge: A216 Gr WCB to meet Stainless Steel ?

Can we heat treat A216 Gr WCB to meet Stainless Steel NACE requirement? If we could heat treat, what type of heat treatment or temperature do we require to perform?

Please give me a detail answer. Give me an oppotunity for this rookie to shine herself...hihihi....

RE: Challenge: A216 Gr WCB to meet Stainless Steel ?

I am not sure of what you are asking. If after welding you intend to solution anneal the complete stainless/carbon steel weldment, high stress will be incurred at the stainless/carbon steel fusion line.  Welding procedures would need to be qualified with this proposed heat treatment.  It is not normal practice to post weld heat treat this dissimilar weld to the stainless solution treatment. You must also consider any applicable Code requirements.

Please provide futher information.

RE: Challenge: A216 Gr WCB to meet Stainless Steel ?

I'm not sure what you are asking either, but are you inquiring about whether WCB can be heat treated to meet the hardness requirements of a NACE spec, such as MRO175? (which happens to include some stainless steels?)

RE: Challenge: A216 Gr WCB to meet Stainless Steel ?


That is the exact answer I am looking for. Thank you very much. You are on the right track, but could you be more specific about MRO1975.


Thank you for your explanation about the welding procedures for heat treatment.

RE: Challenge: A216 Gr WCB to meet Stainless Steel ?

The hardness requirements MR0175 can readily be met, with or without PWHT, depending on thickness of the joint and welding process. PWHT hold temperature, if required, is 1100 F minimum. If the thickness is less than about 5/8" no PWHT should be needed unless you weld with GMAW, short circuiting transfer process.  

With proper preheating, you can safely meet NACE without PWHT to the Code mandated thickness requiring PWHT.

RE: Challenge: A216 Gr WCB to meet Stainless Steel ?

NACE MRO175 is a specification for sour service.  You really need to know what specifications apply because there are different NACE specifications for different service environments.

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!


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