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Re: [MW:32365] filler material between 304L and 316L

By Materials & Welding

P Number & Group  Number are same for 304L & 316L.( P8 & Gr-1)

For the consumables , it has the same F Number  & A Number. ( F-6 & A-8)

So it is acceptable...


Thanks & Regards,

Mani



On Mon, May 10, 2021 at 9:59 AM Kannayeram Gnanapandithan <kgpandithan@gmail.com> wrote:
Ref ASME B31.1, 127.2.1D

On Mon, May 10, 2021, 9:16 AM Vanchinath S.A. <vanchinaths@gmail.com> wrote:
You can use either of filler metal for dissimilar joint between 304L and 316L.


On Sat, 8 May, 2021, 6:31 pm Arun Padman, <arunpadman0105@gmail.com> wrote:
You can refer to API RP 577 APPENDIX D,

But it's an RP, not a standard.

As per   API RP 577 APPENDIX D you can use both 308L and 316L filler wire.

Regards,

Arun Padman Manayil

Plant Inspector 

Tel:+974 50577156


  Save a tree. Please don't print this e-mail unless you really need to


On Sat, May 8, 2021 at 3:41 PM Ramon Briceno <bricenori@hotmail.com> wrote:

Dear Chiranjeevi  for  this 304L / 316L weld, a qualified WPS should have been used where the filler material was superior metallurgy for the joint. In this case, use type 316L filler material to achieve adequate Mo content as protection against intergranular corrosion by chlorides, for example.

Sorry, I think you're going to have to cut those 20 welds made with 308L.

In all Codes and Standards, good welding practices indicate the correct combination.

 

Regards,

Ramon Briceno

Metallurgical Engineer.

Amon

 

Sent from Mail for Windows 10

 

From: Chiranjeevi A
Sent: Saturday, May 8, 2021 12:09 AM
To: materials-welding@googlegroups.com
Subject: [MW:32355] filler material between 304L and 316L

 

Dear Experts,

 

     At the site 308L filler wire used for the Pipe joint between 304L and 316L.  After doing the PMI QC rejected the joints and suggesting to use 316 filler.

 

   Experts kindly share the details of the code reference to accept or any procedure to avoid cutting 20joints.

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