Materials & Welding

E347H welding on 347H grade means welding bead is already having higher carbon. Carbon, sulphur & phosphorus are responsible for solidification cracking. Try to reduce the % of these elements in welding. Use properly baked electrodes. If it's a high load containing part then need to perform PWHT also. Try using E347 with carbon content upto 0.04% or use E347L with respective filler. On Oct 31, 2017 6:22 PM, "aslab khan" < aslab786@gmail.com > wrote: Use the highest welding speed possible. The faster the weld is conducted, the faster the cooling rate and the less time the weld is in the hot cracking temperature range. Try to use welding and assembly sequences and techniques that minimize restraint, reduce residual stress and produce welds of acceptable profile.  This picture shows two fillet weld terminations in the corner of a welded structure.  Cracking is visible in both termination craters.  Also cracking is visible along the center of both welds.  The reason...

Use the highest welding speed possible. The faster the weld is conducted, the faster the cooling rate and the less time the weld is in the hot cracking temperature range. Try to use welding and assembly sequences and techniques that minimize restraint, reduce residual stress and produce welds of acceptable profile.  This picture shows two fillet weld terminations in the corner of a welded structure.  Cracking is visible in both termination craters.  Also cracking is visible along the center of both welds.  The reason for this hot cracking is undesirable weld profile caused by poor welding technique. The reduction in throat thickness at the termination and for a portion of the fillet weld has allowed the stresses developed during welding to fracture the weld. Thanks & Regards, aslab a khan On Tue, Oct 31, 2017 at 3:13 PM, Amul Raj < win.amul@gmail.com > wrote: Dears Experts, Hydro cracker Unit, Heater Radial coil welding base material 347H and Filler wire ER347H(Metrode) ...

Dears Experts, Hydro cracker Unit, Heater Radial coil welding base material 347H and Filler wire ER347H(Metrode) Size 4' x 13.49 Thickness  When we start the welding, getting crack in the weld stop and start point  Please advise me Regards, Amul Raj T     -- 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 . Visit this group at https://groups.google.com/group/materials-welding . For more options, visit https://groups.google.com/d/optout .

How to apply Cyclic Assessment/Analysis requirements of ASME VIII Div. 2 to a "standard" Div. 1 vessel design please?   Then follow-up 3 questions are as below for the scenario   Scenario   The supplier is offering a "standard" ASME VIII Div. 1 dryer vessel (pressure swing) with proven operating experience in excess of the 30 year design life required by the project.   The Project Vessel Specification calls for fatigue analysis according to Div. 2, when required,   It appears that Div. 2 section 5.5.2.1 c calls for a fatigue analysis if specified number of cycles is greater than 10^6, even if comparable experience can be proven (we have over 2x10^6 cycles).    Questions: Are there any circumstances or, code exceptions, whereby proven experience can override Div.2 section 5.5.2.1.C? What   is the criteria for determining if a vessel is in cyclic service i.e. how to i...

Wps is data which tells the in what how we have to welding.. and it is also reffer what we are thinking to do welding we vl get that or not and thr prop also of only welding metal..... Pqr is quality of welder.. its ability to do welding by following data given range in wps.... and one more imp DESTRUCTIVE TESTING RESULT ARE ALSO MENTIONED IN PQR.. simple welder give a welding test by using hint in wps .. and pqr is result for that in actually -- 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 . Visit this group at https://groups.google.com/group/materials-welding . For more options, visit https://groups.google.com/d/optout .

Dear Experts, Why force air cooling is not allowed for normalizing instead of cooling in still air. what is the heat treatment cycle for annealing normalizing stress relieving tempering  where is the reference? please guide -- 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 . Visit this group at https://groups.google.com/group/materials-welding . For more options, visit https://groups.google.com/d/optout .

Dear Friend, It is hardly a matter of concern if PMI is being carried out before or after PWHT. The ultimate purpose of PMI is to ensure that the material contains required chemistry or not. There is no harm also if the same is carried out before PWHT. It is not like RT when it is preferred after PWHT to know if there is any repair specially crack has been developed after PWHT. Hope I answered your query. Regards, Rajnish -------------------------------------------- On Thu, 10/19/17, abdulkhadar musthafa < abdulrilvan@gmail.com > wrote: Subject: [MW:26929] Alloy PMI after PWHT(piping) To: materials-welding@googlegroups.com Date: Thursday, October 19, 2017, 1:49 PM Dear Friends   Would Some one explain me  regarding Alloy materials(P11 and P5) having PWHT, but contractor side suggest they want to PMI before PWHT. I want is there is against code or mentioned in our codes. waiting for reply  -- ABDUL KHADAR...

yes its possible... what is wps... its simple a path for welder .. suppose 20 welder doing welding using one wps so 20 pqr made different welder style ability is diff -- 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 . Visit this group at https://groups.google.com/group/materials-welding . For more options, visit https://groups.google.com/d/optout .

Pls Matt. I believe u have gotten ur result now. Did you pass? I wrote API 570 yesterday in Lagos and I got marginal result too. Pls kindly reply. Thanks and all the best. -- 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 . Visit this group at https://groups.google.com/group/materials-welding . For more options, visit https://groups.google.com/d/optout .

Yes. Thanking You, With Regards.. Dinesh V Somwanshi Api 570, Cswip 3.1,Bgas 2 Authorised Certified Piping, Welding, Painting Inspector. 00919881344135 On Oct 26, 2017 7:07 PM, "'raouf salhi' via Materials & Welding" < materials-welding@googlegroups.com > wrote: Dear expert , We have a wps supported by two differents PQR's, it's possible according ASME IX ? regards SALHI Raouf QA/QC Engineer Tel: Morocco +212628979891       Tunisia +21621458258 -- 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 . Visit this group at https://groups.google.com/ group/materials-welding . For more options, visit https://groups.google.com/d/ optout . ...

Dear expert , We have a wps supported by two differents PQR's, it's possible according ASME IX ? regards SALHI Raouf QA/QC Engineer Tel: Morocco +212628979891       Tunisia +21621458258

Stainless steel is high alloy steel On Mon, Oct 23, 2017 at 10:05 PM, Souravbohray < ermechsouravbohray@gmail.com > wrote: What is carbon steel... alloy steel...low alloy steel and high alloy steel.. 2) ss come in which category 3) different grade of ss. -- 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 . Visit this group at https://groups.google.com/ group/materials-welding . For more options, visit https://groups.google.com/d/ optout . -- 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 ...

In aws d1.1 acceptance criteria is given for all ndt and dt testing.. For further u can also go through asme sec9.. For further BIS -- 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 . Visit this group at https://groups.google.com/group/materials-welding . For more options, visit https://groups.google.com/d/optout .

What is carbon steel... alloy steel...low alloy steel and high alloy steel.. 2) ss come in which category 3) different grade of ss. -- 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 . Visit this group at https://groups.google.com/group/materials-welding . For more options, visit https://groups.google.com/d/optout .

Please see below the requirement from ASME Sec.I Power Boilers. "> I suppose PW-39 exemptions are applicable only for socket welds & seal welds. Hope some experts can throw more light on this subject. Thanks & Regards J.Gerald Jayakumar 0091-9344954677 On Monday, October 23, 2017, 8:45:39 AM GMT+4, 'james gerald' via Materials & Welding <materials-welding@googlegroups.com> wrote: Please find below the requirement from Power Piping ASME B31.1 "> Please find below the Requirement from ASME Sec.VIII Div.I "> Thanks & Regards J.Gerald Jayakumar 0091-9344954677 On Monday, October 23, 2017, 6:28:03...

Please find below the requirement from Power Piping ASME B31.1 "> Please find below the Requirement from ASME Sec.VIII Div.I "> Thanks & Regards J.Gerald Jayakumar 0091-9344954677 On Monday, October 23, 2017, 6:28:03 AM GMT+4, Kannayeram Gnanapandithan <kgpandithan@gmail.com> wrote: If you do not go for SR, then you have to do preheat otherwise no. Pl ref PW39 On 23-Oct-2017 7:49 am, "'james gerald' via Materials & Welding" < materials-welding@googlegroups.com > wrote: Both Chromium and Molybdenum increases hardenability(propensity to Brittleness) and hence required to be pre-heated. Please follow below guidelines table. "> Thanks & Regards J.Gerald Jayakumar 0091-9344954677 ...

Simple, Abdul. If it does not pass in PMI, why would you send it for PWHT?   Best Regards, Shashank C Vagal     On Thursday, 19 October 2017 3:29 PM, abdulkhadar musthafa <abdulrilvan@gmail.com> wrote: Dear Friends     Would Some one explain me  regarding Alloy materials(P11 and P5) having PWHT, but contractor side suggest they want to PMI before PWHT.  I want is there is against code or mentioned in our codes. waiting for reply  -- ABDUL KHADAR MUSTHAFA QC-WELDING INSPECTOR +91-9841879981 "The reward of deeds depends upon the intentions" "செயல்கள் அனைத்தும் எண்ணங்களைப் பொருத்தே அமைகின்றன. ஒவ்வொருவருக்கும் அவர் எண்ணியதே கிடைக்கிறது." -- 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 uns...

You may read through API-RP-578, clause 4.0 and various associated sub-clauses. PWHT does not cause any major change in the alloy content of the base metals and the welds. Alloying elements may diffuse within the matrix, during PWHT, instead of being locally segregated. Thus the PMI results after PWHT could be more consistent than before PWHT. Although such changes could be very microscopic .   Design codes does not specify at what point such verification is to be done. It's clients' call.   If the PMI technique is XRF , it may be performed before or after PWHT . If the technique is OES , then many clients prefer this before PWHT, as arcing during the OES process may leave arc stains/marks . Such marks  may require grinding of buffing , not usually desirable after PWHT, due to chances of human errors.   Thanks.   P.Goswami.P.Eng, IWE. Welding & Metallurgical Specialist Linkedin: https://www.linkedin.com/in/pradip-goswami-2999855/ Email:pgoswami@quickclic.net,pr...

Dear Friends     Would Some one explain me  regarding Alloy materials(P11 and P5) having PWHT, but contractor side suggest they want to PMI before PWHT.  I want is there is against code or mentioned in our codes. waiting for reply  -- ABDUL KHADAR MUSTHAFA QC-WELDING INSPECTOR +91-9841879981 "The reward of deeds depends upon the intentions" "செயல்கள் அனைத்தும் எண்ணங்களைப் பொருத்தே அமைகின்றன. ஒவ்வொருவருக்கும் அவர் எண்ணியதே கிடைக்கிறது." -- 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 . Visit this group at https://groups.google.com/group/materials-welding . For more options, visit https://groups.google.com/d/optout .

Hi Dear , Its need to inform you that i was in range of 67 - 73 % results but overall got 71 % in passing. Regards Dinesh Thanks & Regards DINESH VITTHAL SOMWANSHI BACHELOR IN MECHANICAL ENGINEER AUTHORIZED PIPING / WELDING / NDT / PAINTING INSPECTION PERSONNEL API 570 - Piping Inspector, AWS - CWI , CSWIP 3.1*,*BGAS  Gr 2 / 3 NDT II -UT , RT , MT , PT, VT +7 924 374 6660 Russia , 00919881344135 India ( Whatsapp ) Skype = dinesh somwanshi असो द्यावी दया तुमच्या लागतसे पाया. *Pray for others, sometime, You might never need to pray for yourself again.....* On Thu, Oct 19, 2017 at 2:55 PM, Renjith < renjithtb111@gmail.com > wrote: Can you please tel me how many sure questions u answered correct  in closed book?  On Wednesday, 18 October 2017 05:43:14 UTC+3, yashi wrote: Ya I gave api 570 on July d same result I got. After  a month I recived a mail that I got 89 marks out of 91 set for passing mark. On Wed, 18 Oct 2017 at 5:32 AM, Rover Chu < taer...@gmail.com > wrote: ...

Can you please tel me how many sure questions u answered correct  in closed book?  On Wednesday, 18 October 2017 05:43:14 UTC+3, yashi wrote: Ya I gave api 570 on July d same result I got. After  a month I recived a mail that I got 89 marks out of 91 set for passing mark. On Wed, 18 Oct 2017 at 5:32 AM, Rover Chu < taer...@gmail.com > wrote: Hi Friend I also just finish API 570 CBT exam yesterday. and  got marginal result. is there any person who got such a result, but finally case did not pass ? Rover -- 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-weld...@ googlegroups.com . Visit this group at https://groups.google.com/ group/materials-welding . For more options, visit https://groups.google.com/d/ optout . ...

Dear, There is 90 % of chances getting passing, The Marginal Passing means you were not reach individual subject of 70 % but aggregate 70 % near about that. Dont be afraid will get pass. Thanks & Regards DINESH VITTHAL SOMWANSHI BACHELOR IN MECHANICAL ENGINEER AUTHORIZED PIPING / WELDING / NDT / PAINTING INSPECTION PERSONNEL API 570 - Piping Inspector, AWS - CWI , CSWIP 3.1*,*BGAS  Gr 2 / 3 NDT II -UT , RT , MT , PT, VT +7 924 374 6660 Russia , 00919881344135 India ( Whatsapp ) Skype = dinesh somwanshi असो द्यावी दया तुमच्या लागतसे पाया. *Pray for others, sometime, You might never need to pray for yourself again.....* On Tue, Oct 17, 2017 at 11:29 PM, Rover Chu < taerover@gmail.com > wrote: Hi Friend I also just finish API 570 CBT exam yesterday. and  got marginal result. is there any person who got such a result, but finally case did not pass ? Rover -- https://materials-welding. blogspot.com/ https://www.linkedin.com/ groups/122787 --- You received this...

Ya I gave api 570 on July d same result I got. After  a month I recived a mail that I got 89 marks out of 91 set for passing mark. On Wed, 18 Oct 2017 at 5:32 AM, Rover Chu < taerover@gmail.com > wrote: Hi Friend I also just finish API 570 CBT exam yesterday. and  got marginal result. is there any person who got such a result, but finally case did not pass ? Rover -- 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 . Visit this group at https://groups.google.com/group/materials-welding . For more options, visit https://groups.google.com/d/optout . -- Thanks & Regards, Aslab Ahmad Khan     -- https://materials-welding.blogspot.com/ https://www.linkedin.com/g...

Hi Friend I also just finish API 570 CBT exam yesterday. and  got marginal result. is there any person who got such a result, but finally case did not pass ? Rover -- 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 . Visit this group at https://groups.google.com/group/materials-welding . For more options, visit https://groups.google.com/d/optout .

Dear Mr. Lakshman, Now i can understood, thanks. Regards, Venkkatesh Gopalakrishnan. On Tuesday, October 17, 2017 at 1:00:28 PM UTC+3, Lakshman Kumar wrote: Hi, Question 3. Is the welder qualified to deposit .864 in. of weld metal using 6010 Yes qualified (because 7018 F # is 4, and when a welder qualified in F#4 he is qualified for F#3 also, refer QW 433) If the same welder tested for 6010 & 7018 for 2 different thickness (0.1+0.332=0.432 thick) Then he is qualified for 0.864 thick weld metal. Reason – 7018 F Number is 4, and 6010 F Number is 3, when a welder is tested for F Number 4 he will be qualified for F number 3 also and hence thickness range can be consider for 0.332*2 (2t) = 0.664In.     could you explain me on above statement. 6060(F# is 3) am i correct?       Thanks & Regards, Lakshman Kumar B, +91 9440031459   From: material...@ googlegroups.com [mailto: material...@ googlegroups.com ] On Behalf Of venkkatesh krishnan Sent: Tuesday, October 17, 2017 12:32 PM To:...