Thanks,According to our specification for stainless steel not required an Impact test.But MDMT is -196°C so Shall I required an Impact test.Please advise me what are the parameter shall i include in WPS.RegardsKiranOn Fri, Sep 11, 2020 at 1:48 PM ahmmad ali mohammed <ali47.alisha@gmail.com> wrote:Dear mr.Karan,--Can u please confirm the service design temperature or any impact test done during PQR if done confirm the test temperature.Sent from my iPhoneOn 11 Sep 2020, at 11:53 AM, Vishwas Keskar <vvkeskar123@gmail.com> wrote:Dear Kiran,The query is tricky one. Bt pl note that you have qualified PQR wIth Flux cored welding wire for root pass and then filler with Solid filler wire .Refer QW404.23 , Filler metal Product form is essential . Though you are not using that flux cored filler for root pass and want to use ER 308L Solid wire with backing gas , ASME SEC IX is not that clear to address this query straightforward.<image.png>Advise - Qualify new PQR--On Fri, Sep 11, 2020 at 9:44 AM Kiran Ekbote <karan.hbl@gmail.com> wrote:Dear Vishwas / George,Please I need more clarification on my above query.Can I use the second process or not, if not please clarify my doubt with code reference.And if yes also, please update me, what are the parameter shall I mention in WPS.And thanks for your response.RegardsKiranOn Thu, Sep 10, 2020 at 6:19 PM Vishwas Keskar <vvkeskar123@gmail.com> wrote:it seems thatYou do not want to use ROOT PASSS WITH FLUX CORED filler wire and want to use solid wire with backing gas.The query is tricky one.it has many variablesJoint design :Welding with backing to Welding without backingBacking gas :Addition of backing gas with Solid filler wireQw 404.23 and QW 402.5 are there but not that clear to support your query.Advice :Qualify PQR with backing gas with Solid Wire ER308L for root pass as well as filler passes.--On Thu, 10 Sep 2020, 12:19 K K, <karan.hbl@gmail.com> wrote:Dear All,
Please clarify some below points.
I have previously qualified PQR, details as below.
PQR with ASME sec.IX and B31.3 and API 582.
Process - GTAW (Manual)
Base Metals - ASTM A312 TP304L to STM A312 TP304L
P.No - P8 Gr.1 to P8 Gr.1
Test coupon Thickness - 5.54 mm
First Process - GTAW - SFA - 5.22, AWS - R308LT1-5 , F.No - 6,
A.No - 8, Size of Filler .M - 2.2 , F.M.Product from - Flux-cored, Weld Metal Thickness -
1.5mm.
Second Process - GTAW - SFA - 5.9, AWS - ER308L , F.No - 6,
A.No - 8, Size of Filler .M - 2.5 , F.M.Product from - Solid, Weld Metal Thickness -
4.04 mm.
According to red highlighted (Second process) can I use to prepare WPS.
And Thickness range 1.5 mm to 8.08 mm, other all parameters in WPS shall be as above in red highlighted.
I don't want to use the first process.
Please let me clarify, if any changes, please guide me to prepare WPS.
Regards
KK
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