Materials & Welding

Good morning experts                  In WPS ,from where we need to get Impact test qualified thickness ranges (min - max). what are dimensions of Test coupon,and how can we decide the impact test temperature?why Heat input should be calculated,when ever impact test required in wps,is hardness required for ever joint ? please give ur best in the point of Saudi Aramco projects. -- 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/CAO8WSnEmrE0sp5s9UkKdEJ6GxTu45tTDKdLR%2BHMViGHZBBdnbg%40mail.gmail.com .

Hello Everyone, Could you please advise and share your experience regarding SPWHT requirements of material (Plate, Pipe, forging, Fittings and Flanges) for pressure vessels as per ASME and ARAMCO standard. and please elaborate in detail and also mention the reference if possible.  If you require any further information, please do not hesitate to contact me . Thanks & Best Regards,   Awais Butt Senior QA/QC Inspection Engineer | QA/QC Department -- 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/CAG5KMG_4P2uUt4R8fkAgCWZ6LXHgByghh3-vwwOeboujRHKdaA%40mail.gmail.com .

Dear, I can see that corrosion is limited only to the weld joints. If yes, then why 7018 is used for welding. 7018 is carbon steel (CS) filler and shall not be used with SS cladding in case service is corrosive otherwise galvanic corrosion will occur. Usually the chemical MFR issue detailed MSDS where it list compatible and non-compatible material for material handling and storage. Go ask him and if CS is not suitable for the stored material inside tank, then it is mistake from tank manufacture. In simple word, if you selected internal clad of SS, then internal welds exposed to service also shall be SS not CS. also, I can see localized corrosion which may be either 1 - wrong welding electrodes only for these welds or Improper pickling and passivation after fabrication before placing tank in-service thanks Ahmed Corrosion Engineer On Monday, July 24, 2023 at 05:10:08 PM GMT...

Dear Mr. Satish, You can use existing PQR for a WPS/ Job having maximum holding time 118.75 minutes. Regards, C. R. GANDHI On Tuesday, July 25, 2023 at 05:03:28 PM GMT+5:30, AJAY MAGAR <ajaymagar2202@gmail.com> wrote: Dear all, following code interpretation clear all for above raised query. Standard Designation: BPV Section IX Edition/Addenda: Para./Fig./Table No: Subject Description: QW-407.1 and QW-407.2, Postweld Heat Treatment (2007 Edition) Date Issued: 12/11/2007 Record Number: 07-1708 Interpretation Number : IX-07-06 Question(s) and Reply(ies): Background: A weld test coupon for a PQR was welded to itself using P-No. 1, Group 2 plate material and postweld heat treated at 1110°F to 1130°F (600°C to 610°C) for 10 hr. The PQR documents all supplementary essential variable notch-toughness requirements. Notc...

Please refer ASTM A370 or ASME SA-370. Please also refer ASTM E8M section 6.10 Thanks & Regards J.Gerald Jayakumar On Wednesday, 26 July, 2023 at 01:55:09 pm IST, Sam <samraja224@gmail.com> wrote: Dear Expert, Gauge length shall be reported in MTC as per ASME SA-105 material.  Kindly confirm and reference clause. Thanks, Sam-Kuwait -- 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/6ce53999-6582-47f4-9399-ae6e7d9da8f...

      The answer is No.        Know the differences between their bevel preparations. Hope the following will help you understand them:   ·         The difference between the 6G and 6GR positions is the restriction ring and the bevel preparation. 6G is prepared       as a single 'vee' at 45 degrees position with the horizontal plane, while the 6GR bevel preparation is a single bevel       and the two connecting pipes have different thicknesses, one is thicker by at least 4-6mm. ·         What differentiates the 6G from the 6GR?  ·         Firstly, the difference between both is the R in the 6GR. The letter R indicates that 6GR welding consists of a restricting       ring. Another difference between the 6G and 6GR is the bevel preparation. Bevel preparation is a procedure done to       prepare the metal before one can start welding. The welder cuts a slope at a specific angle on the metal, particularly at       the edge.   ·         If you are familiar with the ...

As per AWS D1.1, 6GR is required 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 Wed, Jul 26, 2023 at 1:18 PM Uma sankar Sankar < umasankar6246@gmail.com > wrote: Dear Experts                         Can 6G qualified welder can weld T,K,Y joints,yes or no.If yes why,if no why. Why only 6GR qualified welder only can weld T K Y JOINTS? What type of NDT required? How to weekly Repair rate of welder. -- 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://grou...

Dear Expert, Gauge length shall be reported in MTC as per ASME SA-105 material.  Kindly confirm and reference clause. Thanks, Sam-Kuwait -- 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/6ce53999-6582-47f4-9399-ae6e7d9da8fdn%40googlegroups.com .

Hi Uma shankar, 1) 6G - welder - No  2) 6GR welder -Yes, TKY -joints are partial penetration groove joints with limited access during welding.                           R stands for restriction ring during performance qualification.  3) TKY NDT   - Before welding - UT Lamination check.                          After Welding- Wet magnetic particle testing & Angle probe-Ultrasonic testing.  4) Repair Rate- Only applicable for Full penetration groove weld & butt weld only (Category A-CategoryA,B,C)   Regards  Vinoth On Wed, Jul 26, 2023 at 11:48 AM Uma sankar Sankar < umasankar6246@gmail.com > wrote: Dear Experts                         Can 6G qualified welder can weld T,K,Y joints,yes or no.If yes why,if no why. Why only 6GR qualified welder only can weld T K Y JOINTS? What type of NDT required? How to weekly Repair rate of welder. -- https://materials-welding.blogspot.com/ https://www.linkedin.com/groups/122787 --- You received this message because you are ...

Dear Sir    What is the welding travel speed in 71T1 welding with co2. Pl suggest.  Regards. Rupak Kumar  -- 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/CAABufEQnawaASrfkYi4RADu4tm3chVqVFGX8HG_iRAGffz1jLQ%40mail.gmail.com .

Dear Experts ASTM A 692 pipe joint welded on June 10th 2023 ,NDT RT result was failed , while attending  repair,come to know that drawing revised on June 20th ,As per revised drawing required pwht.As per old drawing pwht not required. What may be the root cause? What will be the proposed correction? If the pqr done with pwht ,is it possible to prepare wps with and without pwht? But pwht is Essential variable for welding procedure specifications? During investigation 15 joints were found in the same situation, what will be the action can we take? I believe,I will get the best answer  -- 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...

Dear Experts                         Can 6G qualified welder can weld T,K,Y joints,yes or no.If yes why,if no why. Why only 6GR qualified welder only can weld T K Y JOINTS? What type of NDT required? How to weekly Repair rate of welder. -- 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/CAO8WSnGALirhW4vroU5hACX-VMQLLvxm4FrmX5dEfEMYb1v45g%40mail.gmail.com .

Hi team, Kindly advice the requirement of impact test for Reinforcing pad plate which is welded to the main header. Kindly note that the main header pipe is already impact tested. Service: Non Sour Lateral Material: SS316/316L Lateral Sizes:  60" X 30"  60" X 42" and  60" X 52" Code: ASME B31.3 Thanks in advance. -- 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/3e26c23c-8746-4e43-ac3a-14acc0ff8354n%40googlegroups.com .

Sir please find herewith attached copy  On Mon, 24 Jul, 2023, 8:40 pm subin babu, < subinbabu40@gmail.com > wrote: Hi guys What was the accurate conversion value of  Bar to kg/cm² ? I have a doubt which one is correct value for calculation  1.02 0.981 Please let me know the  correct one  -- 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/CA%2BLapqquHq7NSjpeUAAOryUd7PLMs7mdGdae_hSiM1-q8wWWZA%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 "...

Dear all, following code interpretation clear all for above raised query. Standard Designation: BPV Section IX Edition/Addenda: Para./Fig./Table No: Subject Description: QW-407.1 and QW-407.2, Postweld Heat Treatment (2007 Edition) Date Issued: 12/11/2007 Record Number: 07-1708 Interpretation Number : IX-07-06 Question(s) and Reply(ies): Background: A weld test coupon for a PQR was welded to itself using P-No. 1, Group 2 plate material and postweld heat treated at 1110°F to 1130°F (600°C to 610°C) for 10 hr. The PQR documents all supplementary essential variable notch-toughness requirements. Notch toughness is required and all qualification ranges are supported by the PQR for production welds. Question: Will this PQR support a WPS that specifies a PWHT temperature range below the lower transformation temperature, provided the time at temperature does not exceed 12.5 hr? Reply: Yes. On Friday, October 19, 2012 at 8:08:42 AM UTC+4 Harry Patel wrote: Dear Mr. Satish.   This clause apply w...

Dear Gents, Kindly support selecting the proper storage tank material of Sodium Polycarboxylate. currently, I have 100 ton CS storage tank of  Sodium Polycarboxylate the internal Stainless steel 304 cladding 2mm sheets. After one year of operation, we found corrosion spots and  Sodium Polycarboxylate leakages. internal SS 304 cladding welding joints by Argon welding - 7018 welding wires. tank tested by water and it was excellent without any leakages. The  Sodium Polycarboxylate data sheet is attached. I've attached photos of the corrosion. Please advise which material I should select to fabricate a storage tank for  Sodium Polycarboxylate and how to solve current corrosion spots. 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,...

When do we specify HIC requirements along with NACE Sour service requirements? In many case NACE + HIC are mentioned...what does this mean? -- 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/f98a4520-b349-46b4-93db-32900632a163n%40googlegroups.com .

Hi guys What was the accurate conversion value of  Bar to kg/cm² ? I have a doubt which one is correct value for calculation  1.02 0.981 Please let me know the  correct one  -- 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/CA%2BLapqquHq7NSjpeUAAOryUd7PLMs7mdGdae_hSiM1-q8wWWZA%40mail.gmail.com .

Gents, In the past a had a project with Super-Duplex with the same problem. To solve this we liked to use Ar-N2 as a backing gas, but this was not in stock. We switched to 100% N2 as a backing gas, and this worked out well for the corrosion test (40 degrees centigrade for Super DSS) and the complete PQR In all cases the use of cold pass technique (thicker root pass (HI 1.2 kJ/mm max, thin second pass) interpass max 150 centigrade, overall HI max 1 kJ/mm has to be maintained  Regards Ir. Jurgen Prinsen IWE Metallurgical and Welding Engineer Van: "materials-welding" <materials-welding@googlegroups.com> Aan: "materials-welding" <materials-welding@googlegroups.com> Verzonden: Woensdag 19 juli 2023 15:36:34 Onderwerp: Re: [MW:34431] Corrosion Test Fail For Duplex Steel Gentlemen excuse me if I have interrupted. This is a  Forum where everybody shares their  Technical knowledge and experience so that it is useful to the concerned. Sometimes we may be wrong als...

Dear Expert, Attachment clip material is Unknown (As per drg SA240 TY SS304L) to pressure part is shell (SA516 GR.70N). No MTC and traceability for attachment material. Same to be used in 'R'-Stamp repairing vessel. Cases, 1, Can weld with PMI and Hardness testing of unknown and verifying weldability and strength of replacement material as per sec viii-1 and NBIC ? 2, Can use No traceability (No product marking) material as per ASME SEC VIII-1 for attachment welds ? 3, Can use SA240 TY316L with traceability material instead of SA240 TY304L (different grade)? Kindly advise us. Sam-Kuwait -- 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 ht...

Just to add a portion from API RP582. "> Thanks & Regards J.Gerald Jayakumar On Wednesday, 19 July, 2023 at 09:08:39 am IST, Babur Khan <mbabur.bwp@gmail.com> wrote: Greetings, In pas we faces same issue and after that we get recommendations from test laboratories to use mixture gases for shielding and purging. Argon + 2% Nitrogen mixer with ER2594 filler wire.a  Babur Khan Lashari  Sent from my iPhone On 18 Jul 2023, at 2:16 PM, Ashish Chacko <iamashleo007@gmail.com> wrote: Backimh and shieldimg gas was argon grade 4.7 b ( 99.997%) On Tuesday, 18 July 2023 at 11:10:50 UTC+3 Vishwas Keskar wrote: What was the backing and shielding gas ? Sent from my iPhone On 18-Jul-2023, at 10:56 AM, Ashish Chacko < iamash...@gmail.com > wrote:  I am currently working on developing a Procedure Quali...