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

ASNT Level I&II

                        

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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