Materials & Welding

The thickness is 5.54 & 21.4 في الأحد، ٣١ كانون الأول ٢٠٢٣, ٠٦:٤٧ Vishwas Keskar < vvkeskar123@gmail.com > كتب: What is thickness ?? Sent from my iPhone On 30-Dec-2023, at 5:10 PM, dia shukr < diashukr@gmail.com > wrote:  Hi friends I have pipe A333 Gr,6 with design minimum temperature (-10C).Will I need to do a toughness test??As you know, depending on table A-1 in ASME B31.3 the minimum temperature is (-50C). Thanks every 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/CAHQEAU55%2BGZ4WKpR-QGS4jGEOAFmPCzzcSh-0Ry2YmPfoEw-xw%40mail.gmail.com . -- https://materia...

What is thickness ?? Sent from my iPhone On 30-Dec-2023, at 5:10 PM, dia shukr <diashukr@gmail.com> wrote:  Hi friends I have pipe A333 Gr,6 with design minimum temperature (-10C).Will I need to do a toughness test??As you know, depending on table A-1 in ASME B31.3 the minimum temperature is (-50C). Thanks every 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/CAHQEAU55%2BGZ4WKpR-QGS4jGEOAFmPCzzcSh-0Ry2YmPfoEw-xw%40mail.gmail.com .

Dear Experts, What is the IS grade plate material which is equivalent to API 5LX70 PSL2 grade pipe material ? Kindly advise. Regards, Jiji Lal K M -- 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/CAHmEnHjA7qj996Tb%2B07aw6jxjR8qhenHgrN7wqwZD_XiDb2Qkw%40mail.gmail.com .

Dear sir , Thanks for your inputs. For your information, We have already done repair as mentioned you above (with Control parameter & with Convex weld Bead to avoid stress concentration) & perform LPWHT (Stabilize Heat treatment ) with control cooling but this time indication come from old weld metal (where indication not observed after first PWHT). What is factor affecting this ? Is there any effect on material Properties (SA 358 Cl.1 /SA 182 F 347H) after multiple heat treatment ( Stabilize Heat Treatment)? if so,than how do we ensure effect after multiple Heat treatment ? Can you please forward  API -TR-942B if you have ?? On Thu, Dec 28, 2023 at 5:54 PM P Goswami < pgoswami@rogers.com > wrote: Hi Jenish, Typically, any weldolet welding involves, high volume of weld metal and high residual stress.  SS 347H is prone to " Stress Relaxation Cracking " if the welding parameters, weld ferrite,  welding consumable chemistry (C:Nb ratio)is not controlled & more....

Hi sir , Thanks for your reply. We already take action against your reply but is there any other factor which may lead to this kind of defect. On Wed, Dec 27, 2023 at 7:48 PM Kannayeram Gnanapandithan < kgpandithan@gmail.com > wrote: bead should be lightly Convex  On Tue, Dec 26, 2023, 11:26 AM Jenish Mistry < jenishmistry1992@gmail.com > wrote: Hi sir, Please refer attached Photograph. On Mon, Dec 25, 2023 at 4:26 PM Raghuram Bathula < raghurambathula@gmail.com > wrote: What kind of indication? Could you Please share before and after HT photographs On Mon, 25 Dec, 2023, 14:54 Jenish MISTRY, < jenishmistry1992@gmail.com > wrote: Dear seniors , As stated subject ,We are facing linear indication on weldolet to Pipe joint  after stabilize Heat treatment. Pipe & Weldolet material : A 358  347H CL1 & SA 182 F 347H Pipe & weldolet Size : 20" Sch. 120 Heat treatment Cycle : Soaking temperature : 886 - 905 ( Soaking time : 3 Hr. & 15 min. minimum) W...

bead should be lightly Convex  On Tue, Dec 26, 2023, 11:26 AM Jenish Mistry < jenishmistry1992@gmail.com > wrote: Hi sir, Please refer attached Photograph. On Mon, Dec 25, 2023 at 4:26 PM Raghuram Bathula < raghurambathula@gmail.com > wrote: What kind of indication? Could you Please share before and after HT photographs On Mon, 25 Dec, 2023, 14:54 Jenish MISTRY, < jenishmistry1992@gmail.com > wrote: Dear seniors , As stated subject ,We are facing linear indication on weldolet to Pipe joint  after stabilize Heat treatment. Pipe & Weldolet material : A 358  347H CL1 & SA 182 F 347H Pipe & weldolet Size : 20" Sch. 120 Heat treatment Cycle : Soaking temperature : 886 - 905 ( Soaking time : 3 Hr. & 15 min. minimum) Welding consumable : ER 347 with carbon greater than & equal to 0.04%. Please give your inputs to eliminate linear indication.  -- https://materials-welding.blogspot.com/ https://www.linkedin.com/groups/122787 --- You rec...

Dear Gents, In ASME SEC IX, QW 406.3 States " An increase of more than 100°F (55°C) in the maximum interpass temperature recorded on the PQR. This variable does not apply for any of the following conditions: (a) WPS is qualified with a heat treatment above the upper transformation temperature." Please clarify why this variable is not applied to Upper Transformation Temperature Heat Treatment. Thanks and Regards, Nirmal Kumar C -- 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/CAF7xvucqD%3DQ7nw6vfRiGV_rzwTHF%2B2%3DxdHp-2ifkWk0kW79UsQ%40mail.gmail.com .

Hi Manish, For Stainless steel 316 (SS316), the Ice formation can lead to mechanical and structural issues, especially in applications where the material is exposed to low temperatures. Damage Mechanisms: Brittle Fracture: At low temperatures, stainless steel, including SS316, can become more susceptible to brittle fracture. This is a type of failure where the material breaks without significant plastic deformation. Ice formation can exacerbate this condition. Stress Corrosion Cracking (SCC): The combination of low temperatures and the presence of certain corrosive agents can lead to stress corrosion cracking. Ice formation may contribute to the development and propagation of cracks in the material. Mitigation Actions to Prevent Ice Formation: Insulation: Providing insulation to the stainless steel structure can help maintain higher temperatures and prevent the formation of ice. This is particul...

Hi sir, Please refer attached Photograph. On Mon, Dec 25, 2023 at 4:26 PM Raghuram Bathula < raghurambathula@gmail.com > wrote: What kind of indication? Could you Please share before and after HT photographs On Mon, 25 Dec, 2023, 14:54 Jenish MISTRY, < jenishmistry1992@gmail.com > wrote: Dear seniors , As stated subject ,We are facing linear indication on weldolet to Pipe joint  after stabilize Heat treatment. Pipe & Weldolet material : A 358  347H CL1 & SA 182 F 347H Pipe & weldolet Size : 20" Sch. 120 Heat treatment Cycle : Soaking temperature : 886 - 905 ( Soaking time : 3 Hr. & 15 min. minimum) Welding consumable : ER 347 with carbon greater than & equal to 0.04%. Please give your inputs to eliminate linear indication.  -- 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 unsub...

What kind of indication? Could you Please share before and after HT photographs On Mon, 25 Dec, 2023, 14:54 Jenish MISTRY, < jenishmistry1992@gmail.com > wrote: Dear seniors , As stated subject ,We are facing linear indication on weldolet to Pipe joint  after stabilize Heat treatment. Pipe & Weldolet material : A 358  347H CL1 & SA 182 F 347H Pipe & weldolet Size : 20" Sch. 120 Heat treatment Cycle : Soaking temperature : 886 - 905 ( Soaking time : 3 Hr. & 15 min. minimum) Welding consumable : ER 347 with carbon greater than & equal to 0.04%. Please give your inputs to eliminate linear indication.  -- 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 ...

Dear seniors , As stated subject ,We are facing linear indication on weldolet to Pipe joint  after stabilize Heat treatment. Pipe & Weldolet material : A 358  347H CL1 & SA 182 F 347H Pipe & weldolet Size : 20" Sch. 120 Heat treatment Cycle : Soaking temperature : 886 - 905 ( Soaking time : 3 Hr. & 15 min. minimum) Welding consumable : ER 347 with carbon greater than & equal to 0.04%. Please give your inputs to eliminate linear indication.  -- 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/e4216097-1946-4671-92c8-acdf0ac01e81n%40googlegroups.com .

The question is generic. To answer the query , you may refer below  For production weld PWHT, construction codes like  ASME SEC I PW 39 . ASME sec VIII DIV 1 UCS 56 are referred. The holding time at the specified temperature range is followed  as a Minimum from respective Tables in the Codes  . 15 - 20 minutes more than minimum specified is acceptable and no issue is envisaged  Vishwas Keskar  IWE  Sent from my iPhone On 08-Dec-2023, at 11:24 PM, kumar sumit <kumarsumities@gmail.com> wrote:  Dear sir               In Pwht if soaking time period is increase(I.e- 15-20minute) at that time it is accepted or not. If accepted then how. If not accepted then also explain. Because I also search in sec IX but I cannot find.                       Please explain.  I thankful to you.  -- https://materials-welding.blogspot.com/ https://www.linkedin...

Dear sir               In Pwht if soaking time period is increase(I.e- 15-20minute) at that time it is accepted or not. If accepted then how. If not accepted then also explain. Because I also search in sec IX but I cannot find.                       Please explain.  I thankful to you.  -- 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/CACCHnjW3O9wLgzTBzRFZr78FLdCqgafkhxUKjyd3GSBQPsnZiQ%40mail.gmail.com .

Just to add, there will be some requirement in the specification such as 1. For the sour service Pipeline, each Grade of material requires PQR testing. 2. Carbon Equivalent difference 3. Each product form requires separate testing etc.. Thanks & Regards J.Gerald Jayakumar On Thursday, 7 December, 2023 at 11:59:44 am IST, james gerald <gerry_tup@yahoo.com> wrote: Your Question is very generic. It depends on the Code, Specification, and Application. For eg if the Code is ASME Sec.IX and the pipe is SA106Gr.B & the Flange is SA105, then P.No & Group No of pipe will be P1 & Gr.1 Whereas Flange will be P1 & Gr.2. If you Qualify P1 Gr.1 to P1 Gr2, then it qualifies P1Gr1 to P1Gr1 and P1Gr2 to P1Gr2 & P1Gr1 to P1Gr2. See below snap shot from ASME Sec.iX "> Thanks & Regards J.Gerald Jayakumar...

Yes, we can do that, as per guidelines of IS 2062 we have to retest 2 different sample selected from 2 random location, But these 2 sample must be pass the specifications. Reference given in IS 2062 itself. On Wed, 6 Dec, 2023, 9:34 am Rahul Chaudhari, < chaudharire@gmail.com > wrote: Dear expert, I have one concern... IS 2062 plate has rejected in tensile test at Lab. So can we retest the same plate again for revaluation? iF yes, where it has been mentioned in code??  -- 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/KL1PR02MB7286D3B36750FBE47E6B4263A485A%40KL1PR02MB7286.apc...

Hi,  I hope that you are well and doing well, Experts, Can you please guide me about the WPS of Q245R and please share your experience of welding with this material.  Best  Regards, Saleem Khan  +923008500702 -- 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/CAMAY6oO5K0xGP3G%2BhO8LQ0Xa%2BF1cHdcvtte1gkWN407sp2SWtQ%40mail.gmail.com .

There are some differences between Cast & Forged products. CAST VALVE                                                                             FORGED VALVE 1. Castings are normally associated                                          1. Except Hot shortness not much defects in     with defects and Inclusions which                                               For...

While Qualifying PQR, you use the welding consumable manufacturer's reference for Electrical Characteristics and calculate Heat Input/ Example snap shot. "> After Qualifying PQR with the exact values you can specify within above range while preparing WPS/ When Impact test is a requirement. (supplementary essential comes into play) and snap shot of requirement from ASME Sec.IX below. "> Thanks & Regards J.Gerald Jayakumar On Wednesday, 6 December, 2023 at 11:08:22 am IST, Muhammed Shareef <shareefpyari@gmail.com> wrote: Dear team, Can anyone clarify me , How we decide the electrical parameters of WPS. Will it be the same as PQR or what is the limit.  Thanks -- https://materials-welding.blogspot.com/ https://www.linkedin.com/groups/122787 --- You received this message beca...

Your Question is very generic. It depends on the Code, Specification, and Application. For eg if the Code is ASME Sec.IX and the pipe is SA106Gr.B & the Flange is SA105, then P.No & Group No of pipe will be P1 & Gr.1 Whereas Flange will be P1 & Gr.2. If you Qualify P1 Gr.1 to P1 Gr2, then it qualifies P1Gr1 to P1Gr1 and P1Gr2 to P1Gr2 & P1Gr1 to P1Gr2. See below snap shot from ASME Sec.iX "> Thanks & Regards J.Gerald Jayakumar On Wednesday, 6 December, 2023 at 11:08:22 am IST, Muhammed Shareef <shareefpyari@gmail.com> wrote: Dear experts, Is it mandatory to qualify PQR with pipe and flange.? Why can't we qualify with pipe only. What is the limitations here to do so. Thanks -- https://materials-welding.blogspot.com/ https://www.linkedin.com/groups/122787 --- Y...

Dear  Understand what type of defects in both different materials,then you understand why specific requirements of UT or RT Tejas  On Wed, Dec 6, 2023, 8:53 PM nasrath ali < nasrathbinliyakath@gmail.com > wrote: Dear All, As per API 6D, testing for Valves, Code does not call for Radiography Testing for Forged Valves, whereas RT is mandatory for Cast Valves. Kindly clarify the reason for not stipulating RT on Forged Valve 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/31f196c7-0051-4151-ae91-b902c77f0789n%40googlegroups.com . -- https://materials-welding.blo...

Dear All, As per API 6D, testing for Valves, Code does not call for Radiography Testing for Forged Valves, whereas RT is mandatory for Cast Valves. Kindly clarify the reason for not stipulating RT on Forged Valve 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/31f196c7-0051-4151-ae91-b902c77f0789n%40googlegroups.com .

PQR is result of WPS Sent from Yahoo Mail on Android On Wed, 6 Dec 2023 at 8:38, Muhammed Shareef <shareefpyari@gmail.com> wrote: Dear team, Can anyone clarify me , How we decide the electrical parameters of WPS. Will it be the same as PQR or what is the limit.  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/CAL2iHPssh%2BebeDtvBzxFT%2BuXSnJ%3DNcs2hwtUxbFt8V04eC8%2BWQ%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 "Mate...

Just to add. From your Question I assume you are using a code such as B31.3 which gives the requirement for the Material specification whether Impact testing is required based on the Job Thickness. In B31.3 there is a stress table which for carbon steels provide Grahs A B C D or the minimum temperature the material requires impact testing. A snap shot provided below. "> Please also see the snapshot of Note 6 highlighted above. "> Snap shot of Curve "> "> Subsize Charpy impact value provided in my  First mail Thanks & Regards J.Gerald Jayakumar On Wednesday, 6 December, 2023 at 09:34:42 am IST, Prathamesh Patkar <prathameshpatkar@swastikindustriesindia.in> wrote: Dear Sir, Thank you for the response. I had one more query. Are there any acceptance criteria for minus temperatur...