Friday, May 29, 2020

Re: [MW:30939] Ferrite No 7 to 8

I understand 316L with higher chrome will result in better ferrite. But specifications calls for 308L.

On Fri 29 May, 2020, 21:16 Ramin Kondori, <raminkondori@gmail.com> wrote:
You've made a mistake by using 308L filler metal.
Change the WPS and use only 316L filler metal.

Ramin  Kondori
Sr. QA/QC & Welding Engineer
-----------------------------------------------------------
PG-Dip. in Welding Engineering (IWE  AT  0070)
BSc. in Civil Engineering (IUT)
BGAS Painting Inspector
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On Tue, May 26, 2020 at 10:20 AM Vinay Thattey <vinay.thattey@gmail.com> wrote:
Dear Friends ;  For some technical reasons the expected ferrite   after completion of circumferential welding for SS to SS ( ASTM-A -240 SS 316 rolled pipe )  is 7 to 8 . We R using 308L / 316 L filler and obtained result is max 5 . pl advice .

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