Materials & Welding

Dear Vinu ,   please  refe tthe AWS standard / ISO standrds for this  flash but welding / thermit welding of rails   AWS D15.2/D15.2M- Recommended Practices for the Welding of Rails and Related Rail Components for Use by Rail Vehicles to get some basic idea about qualification  and ask your cleint are they having project specifcations for  rail welding. type of tests required for any welding procedure will be confimed by welding code , contrsctuintion code& project specifications& recommended practices applicable for a project . common test fro rail welds are  NDT - RT/ UT(PREFERABLE) , MT weld chemistry  macro hardness metallurgucal test bend test  TRANSFER TESTS    MICRO (METALLURGYCIAL ANALYSIS ) Thanks & regards,  Srinivas Rao On Sunday, June 26, 2022 at 5:57:52 PM UTC+4 vinu raveendran wrote: Dear Rao, Thanks for the advise. Can you please share as per which code we need to do a PQR cou...

Dear Jayakumar Not exactly. UW 4-(a)(8) covers everything else. As i mentioned it is not a preferable/recommended method (either go with Modular or Internal firing are most appropriate).  "provided that other measures (based upon sufficiently similar, documented experience or evaluation) are taken that consider the effect of thermal gradients, all significant structural discontinuities (such as nozzles, attachments, head to shell junctures), and any mechanical loads which may be present during PWHT. The portion of the vessel or component outside the soak band shall be protected so that the temperature gradient is not harmful". On Sun, 26 Jun 2022 at 11:55, 'james gerald' via Materials & Welding < materials-welding@googlegroups.com > wrote: Dear Raghuram, Just for knowledge purpose. Do ASME Sec.VIII Div.I the applicable code permit LOCAL PWHT of Longitudinal seams. Thanks & Regards J.Gerald Jayakumar ...

Thank You Experts for Valuable Comments. As per discussion in trailing mail, Conclusion: as per Code localized PWHT Segment Wise using Induction Coil Heating Method can be considered for this Job. Regards, VH On Sun, Jun 26, 2022 at 1:06 PM 'james gerald' via Materials & Welding < materials-welding@googlegroups.com > wrote: Straight to the point Mr. Vishwas. Thanks & Regards J.Gerald Jayakumar On Sunday, 26 June, 2022 at 10:54:11 am GMT+4, Vishwas Keskar < vvkeskar123@gmail.com > wrote: Dear Vishal  As I understand  correctly , the vessel circumference is 9 mtr  and  your query is that you want to carry out the PWHT of the Circumferemtial seam in segments. The answer is No . You have to carry out PWHT  of  ENTIRE Circumferencial joint in ONE cycle. You can do it by LOCAL PWHT method by wrapping El...

Dear Rao, Thanks for the advise. Can you please share as per which code we need to do a PQR coupon  and what mechanical/ NDT tests need to perform for qualifying WPS.  On Sunday, June 26, 2022 at 9:23:47 AM UTC+3 srinivas rao wrote: Dear Vinu, Most commonly used welding process's for  rail welding is  1. Flash butt welding process   2. Thermit welding process  Regards, Srinivasarao Welding engineer , GPS  On Friday, June 24, 2022 at 2:31:50 PM UTC+4 vinu raveendran wrote: Dear Experts, Please advise what welding process is recommended to join rail material A75 (DIN 356) and as per which reference code/standard. Also mention what NDT to be performed. -- VINU RAVEENDRAN -- https://materials-welding.blogspot.com/ https://www.linkedin.com/groups/122787 --- You received this message because you are subscribed to the Google Groups "Materials & Welding" group. To unsubscribe from this group and stop receiving emails from it, send an email to mate...

Straight to the point Mr. Vishwas. Thanks & Regards J.Gerald Jayakumar On Sunday, 26 June, 2022 at 10:54:11 am GMT+4, Vishwas Keskar <vvkeskar123@gmail.com> wrote: Dear Vishal  As I understand  correctly , the vessel circumference is 9 mtr  and  your query is that you want to carry out the PWHT of the Circumferemtial seam in segments. The answer is No . You have to carry out PWHT  of  ENTIRE Circumferencial joint in ONE cycle. You can do it by LOCAL PWHT method by wrapping Electric Resitance Coil on job and attaching job thermocouples. Many HT contracter are doing such type jobs regularly. Thanks  Vishwas Keskar  IWE- International Welding Enginner On Sat, 25 Jun 2022, 20:21 , < pgoswami@rogers.com > wrote: Hi, It's allowed by Sec VIII, DIV1. Please see the highlighted cl...

Dear Raghuram, Please any code case or Interpretation. Thanks & Regards J.Gerald Jayakumar On Sunday, 26 June, 2022 at 07:46:29 am GMT+4, Raghuram Bathula <raghurambathula@gmail.com> wrote: Although no restriction in code preferable methoud could custom build modular furnace (with panel construction) at site It is straight forward method for cir seams, however for long seams you have to work a methodology for placing coils locally using WRC 452 guidelines, probably  supplimented with an FEA to check thermal stresses On Sat, Jun 25, 2022, 8:21 PM < pgoswami@rogers.com > wrote: Hi, It's allowed by Sec VIII, DIV1. Please see the highlighted clauses as below. Thanks.   Pradip Goswami.P.Eng, IWE. Independent Welding & Metallurgical Engineering Specialist Saudi Aramco Approved Designated Proj...

Dear Raghuram, Just for knowledge purpose. Do ASME Sec.VIII Div.I the applicable code permit LOCAL PWHT of Longitudinal seams. Thanks & Regards J.Gerald Jayakumar On Sunday, 26 June, 2022 at 07:46:29 am GMT+4, Raghuram Bathula <raghurambathula@gmail.com> wrote: Although no restriction in code preferable methoud could custom build modular furnace (with panel construction) at site It is straight forward method for cir seams, however for long seams you have to work a methodology for placing coils locally using WRC 452 guidelines, probably  supplimented with an FEA to check thermal stresses On Sat, Jun 25, 2022, 8:21 PM < pgoswami@rogers.com > wrote: Hi, It's allowed by Sec VIII, DIV1. Please see the highlighted clauses as below. Thanks.   Pradip Goswami.P.Eng, IWE. Independent Welding & Me...

Although no restriction in code preferable methoud could custom build modular furnace (with panel construction) at site It is straight forward method for cir seams, however for long seams you have to work a methodology for placing coils locally using WRC 452 guidelines, probably  supplimented with an FEA to check thermal stresses On Sat, Jun 25, 2022, 8:21 PM < pgoswami@rogers.com > wrote: Hi, It's allowed by Sec VIII, DIV1. Please see the highlighted clauses as below. Thanks.   Pradip Goswami.P.Eng, IWE. Independent Welding & Metallurgical Engineering Specialist Saudi Aramco Approved Designated Project Welding Engineer (DPWR) Qatar Petroleum Approved, SME-Materials & Corrosion Engineering . Linkedin: https://www.linkedin.com/in/pradip-goswami-2999855/ Email:pgoswami@rogers.com , pradip.goswami@gmail.com Cell/Whasapp:1-905-9793232   UW-40 PROCEDURES FOR POSTWELD HEAT TREATMENT: From: vishal hirde < vishalhirde1988@gmail.com > Sent: June 25, 2022 8:24 AM To: ...

Dear Vishal  As I understand  correctly , the vessel circumference is 9 mtr  and  your query is that you want to carry out the PWHT of the Circumferemtial seam in segments. The answer is No . You have to carry out PWHT  of  ENTIRE Circumferencial joint in ONE cycle. You can do it by LOCAL PWHT method by wrapping Electric Resitance Coil on job and attaching job thermocouples. Many HT contracter are doing such type jobs regularly. Thanks  Vishwas Keskar  IWE- International Welding Enginner On Sat, 25 Jun 2022, 20:21 , < pgoswami@rogers.com > wrote: Hi, It's allowed by Sec VIII, DIV1. Please see the highlighted clauses as below. Thanks.   Pradip Goswami.P.Eng, IWE. Independent Welding & Metallurgical Engineering Specialist Saudi Aramco Approved Designated Project Welding Engineer (DPWR) Qatar Petroleum Approved, SME-Materials & Corrosion Engineering . Linkedin: https://www.linkedin.com/in/pradip-goswami-2999855/ Email:pgoswami@rogers.com , pradip.goswami@gmail.com Cell/W...

What diameter can your furnace accommodate?. 9 Meter seems to be Big. There are some options if your Furnace cannot accommodate. 1.  Try for a Temporary furnace with proper insulation and Heating arrangements. Hope there are some subcontractors available. 2. Try for LOCAL PWHT of the seams. 3. Below option may be useful if you have difficulty accommodating the Length in one Heat. Thanks & Regards J.Gerald Jayakumar On Saturday, 25 June, 2022 at 06:57:06 pm GMT+4, pgoswami@rogers.com <pgoswami@rogers.com> wrote: Hi, It's allowed by Sec VIII, DIV1. Please see the highlighted clauses as below. Thanks.   Pradip Goswami.P.Eng, IWE. Independent Welding & Metallurgical Engineering Specialist Saudi Aramco Approved Designated Project Welding Engineer (DPWR) Qatar Petroleum Approved, SME-Materials ...

Hi, It's allowed by Sec VIII, DIV1. Please see the highlighted clauses as below. Thanks.   Pradip Goswami.P.Eng, IWE. Independent Welding & Metallurgical Engineering Specialist Saudi Aramco Approved Designated Project Welding Engineer (DPWR) Qatar Petroleum Approved, SME-Materials & Corrosion Engineering . Linkedin: https://www.linkedin.com/in/pradip-goswami-2999855/ Email:pgoswami@rogers.com,pradip.goswami@gmail.com Cell/Whasapp:1-905-9793232   UW-40 PROCEDURES FOR POSTWELD HEAT TREATMENT: From: vishal hirde <vishalhirde1988@gmail.com> Sent: June 25, 2022 8:24 AM To: materials-welding@googlegroups.com Subject: PWHT Segment Wise for 9 Meter Dia Vessel   Dear All,   We are fabricating a Vessel of Diameter 9 Meter at Site, requires PWHT: Material Grade SA 516 Gr. 70.    For Circumferential Joint PWHT can it be performed Segment Wise as diameter is more??   Pl. Confirm as per ASME Sec VIII Div 1 can it be done in Segment Wise.  ...

What is difference between Consumable insert (QW 404.22) and preplaced fillermetal (QW 404.58) in ASME BPVC Sec IX? Consumable inserts that conform to SFA-5.30 (ASME BPVC IIC), where as no such refrence or difinition for preplaced fillermetal. -- https://materials-welding.blogspot.com/ https://www.linkedin.com/groups/122787 --- You received this message because you are subscribed to the Google Groups "Materials & Welding" group. To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com . To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/aa6754a6-c2c8-4aa7-ab0d-cfa77efa4905n%40googlegroups.com .

Gents, Could you please advise the acceptance criteria for excess weld / circumferential hump / protrusion in weld overlay of API5LD weld overlay pipes? Visual inspection criteria addresses under thickness of 0.8 mm only. it does not say about circumferential humps acceptance limit. Thanks & Regards Muhammed Ibrahim PK -- https://materials-welding.blogspot.com/ https://www.linkedin.com/groups/122787 --- You received this message because you are subscribed to the Google Groups "Materials & Welding" group. To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com . To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/CALOPgmNCWcKP-OBPEEsbiuTRq0GObbuOJxiiipVt3XAO6rZYcQ%40mail.gmail.com .

RT is not mandatory according to ASME sec IX.  1. It is to help you for destructive testing sampling you can discard the defective location. 2. Most of the customer expects RT examination 3. Additionally you have an provision to prefer UT in lieu of RT On Mon, 20 Jun 2022 at 12:11, Manoj Singh < manoj.singh1178@gmail.com > wrote: Hi Teams, want to know while qualifying PQR is RT is mandatory if use pls. give reference. Regards  -- https://materials-welding.blogspot.com/ https://www.linkedin.com/groups/122787 --- You received this message because you are subscribed to the Google Groups "Materials & Welding" group. To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com . To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/CAPkJdRLq5NgcUuh8B6c-s7C7iJCs36LvizYGMY%3Dmx_u%2BiAF8jA%40mail.gmail.com . -- Regards Ramesh Babu Balaram Head Q...

Generally while qualifying PQR following shall report Tension Bend  hardness (additional) Macro (additional) According to project spec Toughness test  Hardness  Macro  On Sat, 18 Jun 2022 at 15:04, Kannayeram Gnanapandithan < kgpandithan@gmail.com > wrote: Hardness test requirements, is it required as per code or Project specification requirements THANKS & BEST REGARDS, KG.PANDITHAN, BE, IWE,  CSWIP 3.1, ISO 9712 Level 2 in VT, ASNT-Level II in PT,MT,RT & UT, LA ISO 9001-2015, International Welding Engineer.  CONSULTANT-WELDING & QUALITY Mobile no: +919940739349 On Fri, Jun 17, 2022 at 7:53 PM Rameshbabu B < rameshbabu.b@zetwerk.com > wrote: Hi Sujit,  Referring to QW-451.1 the following tests shall be conducted. 2 Transverse tensile 2 Root Bend 2 Face bend Additionally, you can advise the laboratory to perform a hardness test for Base, Weld, and HAZ which is common when qualifying a PQR On Fri, Jun 17, 2022 at 6:03 PM sujit kumar < sujitkumar19942@gmail.com ...