×
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

316L vs 316

316L vs 316

316L vs 316

(OP)
We are asked to fabricate an equipment with 316 stainless sttel, can we use 316L instead of 316 as it is hard to find 316 at local market.

RE: 316L vs 316

Normally you can but it's up to the client, based on his designed parameters, to give the OK on the swap.  If there is an ok get it in writing before the start of the fabrication.  

I would look a little harder as there is a lot of dual certified materials out there.  If you can find dual certified material I would run it by his purchasing agent and project manager.

RE: 316L vs 316

The last time I was involved in such an issue I found virtually all bars, etc. were already dual certs as what is happening is the manufacturers are really just making the one grade (316L which meets 316 requirements). It is legitimately 316 and or 316L unless the customer has additional requirements.

Paul Ostand
www.ostand.com

RE: 316L vs 316

Only design related concern might be that 316L yield and tensile strengths are less than for straight 316.

Steve Braune
Tank Industry Consultants
www.tankindustry.com

RE: 316L vs 316

Go for dual cert material.  The only way to get 'real' 316 these days is to order a heat of it, of find a mill mistake.

The reason for so much dual cert material is that the minimum mechanical properties for 304L and 316L were set long ago, and they are way below what is actually manufactured.

= = = = = = = = = = = = = = = = = = = =
Corrosion, every where, all the time.
Manage it or it will manage you.
http://www.trent-tube.com/contact/Tech_Assist.cfm

RE: 316L vs 316

"L" grade = low carbon for welded construction [carbide precipitation @ the grain boundaries causes local corrosion], but lower yield.

Go for dual cert.

RE: 316L vs 316

(OP)
Thanks for all your help. I will look for dual cert material.

RE: 316L vs 316

(OP)
Can somebody email a dual cert sample for 316/316L? The supplier has no idea about the dual cert so I guess I have to show him one. Thank.
mingli979@hotmail.com

RE: 316L vs 316

sounds like you better get a new supplier winky smile

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