| Abhay, A correction to my mail below. I suppose A333Gr.6 comes under Curve B of UCS-66 and hence the Weld and HAZ shall be Impact tested as per ASME B31.3 and also ASME Sec.VIII Div.I inaddition to the Base metal and weld consumables being Impact tested.
J.GERALD JAYAKUMAR 00919344954677
--- On Tue, 2/15/11, james gerald <gerry_tup@yahoo.com> wrote:
From: james gerald <gerry_tup@yahoo.com>
Subject: RE: [MW:9887] electrode selection of WPS of SA 333 Gr 6 low temp piping, GTAW +SMAW
To: materials-welding@googlegroups.com
Date: Tuesday, February 15, 2011, 5:49 AM
| Abhay, As per ASME B31.3, A333 Gr.6 base material is exempted from Impact testing upto -50degC. Hence (PQR)Weld and HAZ is exempted from Impact testing if weld consumables were Impact tested at -45degC. ASME B31.3 reference can be found in Table 323.2.2. It is also the same case for ASME VIII Div.I. Reference : UCS 67(a)(2).
J.GERALD JAYAKUMAR 00919344954677
--- On Tue, 2/15/11, Abhonkar, Abhay (NAR) <AAbhonkar@Dresser-Rand.com> wrote:
From: Abhonkar, Abhay (NAR) <AAbhonkar@Dresser-Rand.com>
Subject: RE: [MW:9886] electrode selection of WPS of SA 333 Gr 6 low temp piping, GTAW +SMAW
To: materials-welding@googlegroups.com
Date: Tuesday, February 15, 2011, 5:22 AM
Pl note the below details. 1) Applicable code is ASME sec Viii Dev 1 & B 31.3 2) Pipe – SA 333 Gr 6 (low temp reading is -45 Deg c) Regards, Abhay Ext 448 IMPORTANT NOTICE:
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From: materials-welding@googlegroups.com [mailto: materials-welding@googlegroups.com ] On Behalf Of james gerald
Sent: Tuesday, February 15, 2011 10:30 AM
To: materials-welding@googlegroups.com
Subject: RE: [MW:9885] electrode selection of WPS of SA 333 Gr 6 low temp piping, GTAW +SMAW Please give the below detail. 1. What is the Applicable code like ASME Sec.Viii Div.I, ASME B31.3, ASME B31.1 etc.. 2. What is the MDMT (Minimum Design Metal temperature).
--- On Mon, 2/14/11, Abhonkar, Abhay (NAR) <AAbhonkar@Dresser-Rand.com> wrote:
From: Abhonkar, Abhay (NAR) <AAbhonkar@Dresser-Rand.com>
Subject: RE: [MW:9880] electrode selection of WPS of SA 333 Gr 6 low temp piping, GTAW +SMAW
To: materials-welding@googlegroups.com
Date: Monday, February 14, 2011, 2:16 PM
Pl guide me on below. Have completed the WPS / PQR for low temp piping (SA333 Gr 6) by using SMAW and the electrodes is E 7018-1. My low temp pipe is already impact tested and my electrodes also qualify for impact testing. Now after welding, for impact test, whether I have to carry the impact test at all places i.e. for pipes, for welding location and at HAZ area. OR I have to carry at HAZ area only as my pipe and electrodes are already impact tested. Also request you to advise the ASME section for the above. Abhay Ext 448 IMPORTANT NOTICE:
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From: materials-welding@googlegroups.com [mailto: materials-welding@googlegroups.com ] On Behalf Of Krandrk
Sent: Monday, February 14, 2011 3:56 PM
To: materials-welding@googlegroups.com
Subject: Re: [MW:9873] electrode selection of WPS of SA 333 Gr 6 low temp piping, GTAW +SMAW i hope you got idea about the filler wire and electrode, but as you said you are going to use 2" Sch 80 for WPS and PQR. before finalish that make sure what is your actual job (thickness and diameter range), and also make sure you may have PWHT requirement or not. so that you can make WPS/PQR to cover all your requirements. also 2' pipe will not cover to do all mechanical testing. so also make sure howmany specimans you requrired to all mechanical testing including impact. You can also try ER 70S6, this filler wire has got good amount of Mn for better low temp. toughness and most of the time impact tested at -50 Deg.C, you need to ask your supplier for specific batch where it has been impact tested to -50 Deg.C. ER 80SNi1 will give you guranteed values, but if your service is sour you need to make sure that the maximum Ni content doesnt exceed 1.0%. More over, It is recommended you use a full GTAW for welding 2" x 5.54mm pipe instead of combination process (GTAW + SMAW) and most international client specs. recommeds the same.
From: james gerald <gerry_tup@yahoo.com>
Subject: RE: [MW:9864] electrode selection of WPS of SA 333 Gr 6 low temp piping, GTAW +SMAW
Date: Monday, February 14, 2011, 11:08 AM It depends on your MDMT(Minimum Design Metal Temperature). I suppose ER70S-2 is suitable for use only upto MDMT of -30degC. These details can be obtained from ASME Sec.IIC Check the above sections in ASME Sec.IIC
--- On Mon, 2/14/11, Abhonkar, Abhay (NAR) <AAbhonkar@Dresser-Rand.com> wrote:
From: Abhonkar, Abhay (NAR) <AAbhonkar@Dresser-Rand.com>
Subject: RE: [MW:9863] electrode selection of WPS of SA 333 Gr 6 low temp piping, GTAW +SMAW
To: materials-welding@googlegroups.com
Date: Monday, February 14, 2011, 5:28 AM
Many thanks for your information. | For SMAW, have selected the same but for GTAW we are using ER 70S2. Is it right? Also request you to inform from where I can select the same, as have gone through the ASME sec 2 Part c but not able to succeed. IMPORTANT NOTICE:
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The above can be used to weld A333 Gr.6 Pipe upto MDMT of -45degC
--- On Mon, 2/14/11, Abhonkar, Abhay (NAR) <AAbhonkar@Dresser-Rand.com> wrote:
From: Abhonkar, Abhay (NAR) <AAbhonkar@Dresser-Rand.com>
Subject: [MW:9855] electrode selection of WPS of SA 333 Gr 6 low temp piping, GTAW +SMAW
To: materials-welding@googlegroups.com
Date: Monday, February 14, 2011, 3:57 AM
Pl advise how can select the electrodes for SA 333 Gr 6 (P1 and G1) low temp pipe. I want to prepare WPS / PQR and then also WPQ for our current project. Have selected the thickness around 5.55 mm (2 "S 80 pipe) for preparing WPS. We followed the process of root run by GTAW and then by SMAW. IMPORTANT NOTICE:
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| -- To post to this group, send email to materials-welding@googlegroups.com To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com For more options, visit this group's bolg at http://materials-welding.blogspot.com/The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
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