Materials & Welding

Hello friends; Was this query answered?  I am also encountering a similar problem in welding 4145tube to S355. we are experiencing a lack of fusion on the 4145 tube side. Preheat given 150°C Electrodes tried E7018 and E10018 MTC attached. The tube is Quench tempered. Any suggestions on this? Thanks in Advance. Chris   On Monday, August 1, 2011 at 8:40:15 AM UTC+4 Mitesh Patel wrote: Dear Mubben  Please Find H/W Attached Doc. Which is help to selection of Welding  consumable ( SMAW & GTAW )  Mitesh Patel Sr, QA/QC Engg On Fri, Jul 29, 2011 at 10:31 PM, mubeen mubeen < mube...@gmail.com > wrote: Hi, Can anybody help me out in order to weld subject base material with appropriate consumables(Electrode or filler wire), along with its preheat and post weld heat treatment temperatures. Regards, Mubeen QA Engineer -- To post to this group, send email to material...@googlegroups.com To unsubscribe from this group, send email to materials-weld...@googlegro...

Dear Noel, Greetings! Can you send the exact excerpt clauses from Client specification regarding hardness test. Kind Regards On Monday, July 26, 2021, 07:14:35 AM GMT+3, Noel Tanilon <noel.tanilon@aboitiz.com> wrote: Our Client is requesting hardness testing as mentioned in the equipment welding specification, where it stated the hardness test to be carried out on the following area for equipment which include tanks: 1. On Circumferential seam (some percentage) 2. Longitude seam (some percentage) 3. All temporary weld made and remove (100%) All the above requirements are so impractical to us since we are fabricating/erecting atmospheric tank (large diameters too). The amount of temporary weld (for erection purpose) are tremendous i.e. thousands for each crude oil storage tanks and hundreds on the miscellaneous...

Dear Noel, This type of situation is most of the time faced by welding and quality engineers. For this reason quality assurance activities are performed prior to product realization. In this process basically all the documents are properly reviewed  and ensured for compliance for client requirements. we must review the documents - Technical/construction specification(API 650), client specification, client additional requirements and/or any other documents. based on these documents the quality Assurance/control plan is required to be prepared and subsequently approved from clients. once this QAP/QCP approved, further requirement shall be considered as additional requirement. Being manufacturer,you may proceed in this way 1. if you realize this is impractical at this moment, you should request for non feasible activities at this moment. 2.perform the welding procedure qualification based for critical welding parement and show the results of hardness on test coupon.based on these results ...

Request to  send SA240  type 201LN specification for study On Sun, 25 Jul 2021, 11:04 atul jha, < atulkrjha21@gmail.com > wrote: DEAR EXPERT I am searching for welding consumables as per below requirement  for cryogenic vessel MDMT -196⁰ C  Base material- SA 240 TYP 201LN.( UTS 655N/mm². Imapct test- (-196⁰c,LE must be 0.38 mm,energy 34J. Bend test at 4t,180⁰. Previously I welded this material by Ni Cr Mo-3 filler wire and flux from a reputed manufacturer and result was acceptable all marine class surveyor. At persent I am looking for  any alternative consumables which satisfy above requirements and cheaper than Ni Cr MO-3. As required quantity is huge so I can go with unassigned welding consuambles also. Guidance  regarding consuambles is highly appreciated. Regards Atul jha . Mob no- 8817536323. -- https://materials-welding.blogspot.com/ https://www.linkedin.com/groups/122787 --- You received this message because you are subscribed to the Google Groups "Mat...

70 KSI is the  minimum UTS  of SA 516 GR 70. So all consumables shall have 70 KSI minimum  UTS. For said mentioned consumables in below your mail ,  70 KSI minimum  is achieved for consumables. So no problem at all. Get WPS PQR reviewed approved before start of production Welding. On Thu, 22 Jul 2021, 15:58 Muhammad Azeem, < azeem7999@gmail.com > wrote: Gents, I need your kind assistance to explain the consumable can be used for this material, As I received from one vendor WPS with following consumable from root till fill/cap. As I know the tensile strength of the base metal is 70000 KSI So  consumable should have more ?? Root - ER-70S-2 -GTAW Fill - E7018 - SMAW EH12K/F7P8- SAW Regards, M.Azeem Iqbal  0590071467 -- 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 ...

Supplementary Essential variable is to be considered and addressed in PQR/WPS when the WPS is qualified with CHARPY IMPACT test and whenever the material requires IMPACT TEST per code/standard. Thanks, MANIVANNAN.P On Mon, Jul 19, 2021 at 8:20 AM PK M < pkmqaqc@gmail.com > wrote: Dears, When does the supplementary essential variable become Essential ?  thanks -- 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/CAFoQ_nfYY8%3D0_GwfXjVnFFbjQU%3Dc-z1ugVsNjKzVpsvF-yS5JQ%40mail.gmail.com . -- https://materials-welding.blogspot.com/ https://www.linkedin.com/groups/122787 --- You r...

When Notch Toughness requirements are specified, then supplementary essential variables become  Essential variable.  Regards On Mon, 19 Jul 2021, 08:20 PK M, < pkmqaqc@gmail.com > wrote: Dears, When does the supplementary essential variable become Essential ?  thanks -- 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/CAFoQ_nfYY8%3D0_GwfXjVnFFbjQU%3Dc-z1ugVsNjKzVpsvF-yS5JQ%40mail.gmail.com . -- https://materials-welding.blogspot.com/ https://www.linkedin.com/groups/122787 --- You received this message because you are subscribed to the Google Groups "Materials & Wel...

Dears, When does the supplementary essential variable become Essential ?  thanks -- 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/CAFoQ_nfYY8%3D0_GwfXjVnFFbjQU%3Dc-z1ugVsNjKzVpsvF-yS5JQ%40mail.gmail.com .

Hi, If the test is as per ASME B31.3 the pneumatic leak test can be carried out with painting. The standard straightly restricts insulation before testing as per 345.3.1 for all testing. Painting before testing is not allowed for Sensitive leak tests which are described in 345.8. The pneumatic Leak Test is covered in 345.5. But many CLIENT SPEC RESTRICTS THE PAINTING BEFORE HYDRO TESTING . Regards V. Kingsly Geo On Tue, 20 Apr 2021 at 11:39, Vinoth Rajendran < rajvinoth1987@gmail.com > wrote: Hi, ASME Section VIII Div. 1 UG-100 Unless permitted by the user or and his designated agent, pressure retaining welds painting not permitted before the pneumatic pressure test. Thanks & Regards, Vinoth. R On Tue, Apr 20, 2021, 10:19 Kannayeram Gnanapandithan < kgpandithan@gmail.com > wrote: it is better to do it in black condition including base material to ensure no leakage. THANKS & BEST REGARDS, KG.PANDITHAN, BE, IWE,  CSWIP 3.1, ISO 9712 Level 2 in VT, ASNT-Level II in PT,...

These are normally called Wagon Tracks or Worm Hole in FCAW and is commonly occuring. Can be avoided by below precautions. 1. by proper storing of flux cored wires in the packed condition and covered by a plastic bag and kept in dry condition under proper humidity control. 2. by controlling contact tip to work distance. Normally recommended 19-25mm but may be increased upto 32mm. Unlike short circuit transfer, by increasing the contact tip to work distance the flux in the electrode can be preheated with increased distance and avoids this defect. 3. too low a voltage can cause worm hole porosity and can be avoided by increasing the voltage. Thanks & Regards J.Gerald Jayakumar On Monday, 12 July, 2021, 07:45:18 am IST, Aditya Gujar <gujar.adi@gmail.com> wrote: Dear Experts, We are facing defects in the stain...

THope.this question is from India. This is called Warm hole porosity. This is typical surface defect of FCAW process and gets aggravated in moist environment. Now a days there is rainy season in India .so atmosphere has a lot of moisture . Pl specify Which brand is being used? As I recall TASETO make wire are better when FCAW E309LT1 is used.  On Mon, 12 Jul 2021, 07:45 Aditya Gujar, < gujar.adi@gmail.com > wrote: Dear Experts, We are facing defects in the stainless steel welding as per attached images, kindly let me know what could be the reason.  Please note below information, Consumable type: SMAW Grade:E309LT1-1 Base metal: E309L plate Co2 gas flow: 15-18 V: 28V Current: 180-200 amps Same batch of flux cored wire E309LT1-1 has worked just fine on the other jobs with similar applications.  Thanks in advance.  Regards,  -- --   Aditya Gujar --- -- https://materials-welding.blogspot.com/ https://www.linkedin.com/groups/122787 --- You received this message...

Process--FCAW? 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 Mon, Jul 12, 2021 at 7:45 AM Aditya Gujar < gujar.adi@gmail.com > wrote: Dear Experts, We are facing defects in the stainless steel welding as per attached images, kindly let me know what could be the reason.  Please note below information, Consumable type: SMAW Grade:E309LT1-1 Base metal: E309L plate Co2 gas flow: 15-18 V: 28V Current: 180-200 amps Same batch of flux cored wire E309LT1-1 has worked just fine on the other jobs with similar applications.  Thanks in advance.  Regards,  -- --   Aditya Gujar --- -- 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...

Hi,    At the outset, it looks to be defect due to skill of welder. Regards, Harish Kumar On Mon, 12 Jul 2021, 07:45 Aditya Gujar, < gujar.adi@gmail.com > wrote: Dear Experts, We are facing defects in the stainless steel welding as per attached images, kindly let me know what could be the reason.  Please note below information, Consumable type: SMAW Grade:E309LT1-1 Base metal: E309L plate Co2 gas flow: 15-18 V: 28V Current: 180-200 amps Same batch of flux cored wire E309LT1-1 has worked just fine on the other jobs with similar applications.  Thanks in advance.  Regards,  -- --   Aditya Gujar --- -- 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 t...

Dear Gujar  Try increasing the stick out to 25 -30 mm and decrease the volts to 27 and also check the gas flow at the outlet of the torch near the contact tip if its really 15-18. If the formulation is correct than there could be humid powders in the flux and improper lubrication could be the reason of these gas marks or pores. Also check if the wire is feeding constantly or its sleeping. Regards  Rudresh Patel  Sao Paulo  Brazil  On Sun, Jul 11, 2021, 21:15 Aditya Gujar < gujar.adi@gmail.com > wrote: Dear Experts, We are facing defects in the stainless steel welding as per attached images, kindly let me know what could be the reason.  Please note below information, Consumable type: SMAW Grade:E309LT1-1 Base metal: E309L plate Co2 gas flow: 15-18 V: 28V Current: 180-200 amps Same batch of flux cored wire E309LT1-1 has worked just fine on the other jobs with similar applications.  Thanks in advance.  Regards,  -- --   Aditya Gujar --- -- https://materials-welding...

Dear Experts, We are facing defects in the stainless steel welding as per attached images, kindly let me know what could be the reason.  Please note below information, Consumable type: SMAW Grade:E309LT1-1 Base metal: E309L plate Co2 gas flow: 15-18 V: 28V Current: 180-200 amps Same batch of flux cored wire E309LT1-1 has worked just fine on the other jobs with similar applications.  Thanks in advance.  Regards,  -- --   Aditya Gujar --- -- 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/CAB89cpD8ioE8j-dUpwY4F7%3DLm0nDmB51tPLmongiwMG%2B0DvPzw%40mail.gmail.com .

please refer to interpretations  1104-I-0302-00,  1104-I-0224-00,  1104-I-0420-03,  1104-I-1115-04,  1104-I-0522-06,  1104-I-0306-17,  1104-I-0102-19 https://mycommittees.api.org/standards/techinterp/transpipe/Shared%20Documents/Std%201104%20-%20Welding%20of%20Pipelines%20and%20Related%20Facilities.pdf On Tue, 6 Jul 2021 at 08:19, < pgoswami@rogers.com > wrote: Hello Asif,   Sorry I got mixed up with the year of publication . This provision was incorporated in API 1104-2020 version . API terms this option as Brother-in-Law welding. See the extracts of the relevant pages. More can't be shared in a public forum. If your contract specifies API -2018 to be followed, legally you can't choose this option, as API 2018 does not address that. However, if allowed by the Authorized Inspector& and the client it's possible. Get the full version of API 1104, 2020 and get your issue straightened.   Hope this would help.   Thanks.   Pradip Goswami.P.Eng, IWE....

Hello Asif,   Sorry I got mixed up with the year of publication . This provision was incorporated in API 1104-2020 version . API terms this option as Brother-in-Law welding. See the extracts of the relevant pages. More can't be shared in a public forum. If your contract specifies API -2018 to be followed, legally you can't choose this option, as API 2018 does not address that. However, if allowed by the Authorized Inspector& and the client it's possible. Get the full version of API 1104, 2020 and get your issue straightened.   Hope this would help.   Thanks.   Pradip Goswami.P.Eng, IWE. Independent Consulting 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     From: material...