Re: [MW:35686] HDPE WPS

Refer ASME SEC IX 

There is separate chapter for Plastic welding .

Based on that you have to prepare 

Sent from my iPhone

On 21 Jun 2025, at 7:48 AM, Sudharsan Sathianathan <sudha.lalsss@gmail.com> wrote:



Dear friends,

I need to prepare a WPS for the HDPE liner pipes. As any body have it, kindly share it with me. 

Thanks in advance.

Regards,

Sudharsan S

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[MW:35687] Qualification of Unlisted materials using AWS D 1.1 - 2020Ed - reg

Dear all , 

I have a situation to Qualify single Bevel CJP - API 5L X 65 pipe with Plate API 2W Gr.50 PL1 , using structural Welding code AWS D 1.1. 

The Problem is API 5L X 65 is unlisted in AWS D 1.1 and API 2W is listed in Group 3.

AWS D1.1 says , PQR using any unlisted materials shall qualify for that particular combination only.

which means i have to go for pipe and plate combination for PQR. Curious to know whther anyone have done PQR for this situation?, If so pls throw some light..

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[MW:35688] Clarification on ASME B31.3 Section 331.2.4 – Cooling Rate Control Prior to PWHT

Dear experts, 

I am seeking clarification regarding the application of ASME B31.3 Section 331.2.4, which states:

"If a weldment is allowed to cool prior to heat treatment, the rate of cooling shall be controlled or other means shall be used to prevent detrimental effects in the piping."

1 Is this requirement mandatory in all cases (Even for P1 materials) where PWHT is performed after a delay of several days following welding?
2 If so, what are the accepted methods for controlling the cooling rate prior to heat treatment as per this clause?

Your guidance on best practices and code interpretation for this requirement would be greatly appreciated.

Thank you in advance for your assistance.

Best regards,

Binto George

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Re: [MW:35689] Clarification on Pressure Drop During Hydro test Due to Temperature Variation

With increase in temperature fluid expands causing pressure increase .  Also significant pressure variation can be expected when fluid is compressible. Can you please specify about  fluid and test temperature?

On Sat, 7 Jun 2025 at 18:12, Kannayeram Gnanapandithan <kgpandithan@gmail.com> wrote:

Pressure Directly proportional to Temperature when Volume is constant 

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, ISO 3834, EN 15085, 

International Welding Engineer. 

CONSULTANT-WELDING & QUALITY

Mobile no: +919940739349

On Sat, 7 Jun 2025, 10:36 Vinoth Kanna, <gvinoth43@gmail.com> wrote:

Dear Experts,

During a hydrostatic test, we observed a gradual pressure drop of approximately 0.7 bar in a 2-inch pipe with a length of 31 meters. The test pressure was 12.5 bar. This issue has occurred in multiple tests.

We request your explanation regarding the relationship between pressure and temperature, and how temperature variations can affect hydrotest results.Also, we seek clarification on the acceptable pressure drop limits considering potential temperature changes during the test.

Thank you for your support.

Regards,

Vinoth G

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Re: [MW:35690] Qualification of Unlisted materials using AWS D 1.1 - 2020Ed - reg

Pl qualify the combination in line with Drawing .

On Sat, 21 Jun 2025 at 12:10 PM, nagendran natarajan <nagend3484@gmail.com> wrote:

Dear all , 

I have a situation to Qualify single Bevel CJP - API 5L X 65 pipe with Plate API 2W Gr.50 PL1 , using structural Welding code AWS D 1.1. 

The Problem is API 5L X 65 is unlisted in AWS D 1.1 and API 2W is listed in Group 3.

AWS D1.1 says , PQR using any unlisted materials shall qualify for that particular combination only.

which means i have to go for pipe and plate combination for PQR. Curious to know whther anyone have done PQR for this situation?, If so pls throw some light..

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[MW:35668] Selection of Filler/Electrode.

Dear Gentlemen,

Kindly advise me as we have tube to tubesheet joint.

Tube moc is incoloy 800

And tubesheet moc is F53 SDSS (Super duplex stainless steel).

For incoloy-800 -- P NO : 45

For F53 SDSS-- P NO: 10H

Which filler wire is applicable please suggest.

Best Regards,

John 

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[MW:35669] Clarification on Pressure Drop During Hydro test Due to Temperature Variation

Dear Experts,

During a hydrostatic test, we observed a gradual pressure drop of approximately 0.7 bar in a 2-inch pipe with a length of 31 meters. The test pressure was 12.5 bar. This issue has occurred in multiple tests.

We request your explanation regarding the relationship between pressure and temperature, and how temperature variations can affect hydrotest results.Also, we seek clarification on the acceptable pressure drop limits considering potential temperature changes during the test.

Thank you for your support.

Regards,

Vinoth G

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Re: [MW:35670] Selection of Filler/Electrode.

For best results, use AWS A 5.14 ER Ni Cr-3 (Incoloy 800) filler wire for the weld metal when joining the Incoloy 800 tube to Super Duplex 

F53 SDSS tube sheet. This filler wire provides good compatibility with both materials, accommodates differences in thermal stability, and 

maintains corrosion resistance and mechanical strength. 

Alternatively, AWS A 5.14 ERNiCrMo-3 (Inconel 625) could be used for a Chloride rich or acidic atmosphere.

rgds,

C Sridhar.

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

On Sat, 7 Jun 2025 at 09:28, HerculanJohn <hjpr820@gmail.com> wrote:

Dear Gentlemen,

Kindly advise me as we have tube to tubesheet joint.

Tube moc is incoloy 800

And tubesheet moc is F53 SDSS (Super duplex stainless steel).

For incoloy-800 -- P NO : 45

For F53 SDSS-- P NO: 10H

Which filler wire is applicable please suggest.

Best Regards,

John 

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Re: [MW:35672] CRA

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On 5 Jun 2025, at 2:03 PM, Raviraj Gohil <raviraj.gohil001@gmail.com> wrote:



Hi..

If your equipment in hydrogen service and Hydrogen Disbonding test is required..

On Wed, 4 Jun 2025, 14:26 Deerendra Karanth, <dkaranths@gmail.com> wrote:

Sir, 

With reference to your query regarding the required tests for corrosion resistant overlay procedure and performance qualification as per ASME Section IX, Table QW-453, in addition to the mentioned LPT and bend tests, the following supplementary tests are recommended—especially considering the application for overlay:

1. Chemical Analysis – As per ASME Section IX Figure QW-462.5(a) to verify composition of the deposited layer. Attached snapshot 

2. Hardness Survey – In accordance with NACE MR0175 to ensure compatibility with sour service, if applicable.

3. Metallographic Examination – To assess overlay quality, dilution, and fusion characteristics.

4. Microstructure Examination – Typically conducted at 100X to 500X magnification.

5. Ultrasonic Testing (UT) – To check for disbondment between the base metal and overlay.

Please ensure these tests are reviewed in alignment with project or client-specific requirements.

BR, 

Deerendra 

<gmail_images20250604_142122.png>

On Wed, 4 Jun, 2025, 13:50 Elavarasan Mech, <elavarasan1861994@gmail.com> wrote:

Dear all 

Please clarify below 

What's are the test required for corrosion resistant overlay 

procedure and performance qualification

As per ASME SEC IX TABLE QW -453 

LPT , BEND TEST -PROCEDURE QUALIFICATION 

BEND TEST - PERFORMANCE QUALIFICATION 

if any additional test required  please gudie me 

We useing this PQR for flange groove overlay 

Regards 

ELAVARASAN

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Re: [MW:35671] Clarification on Pressure Drop During Hydro test Due to Temperature Variation

Pressure Directly proportional to Temperature when Volume is constant 

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, ISO 3834, EN 15085, 

International Welding Engineer. 

CONSULTANT-WELDING & QUALITY

Mobile no: +919940739349

On Sat, 7 Jun 2025, 10:36 Vinoth Kanna, <gvinoth43@gmail.com> wrote:

Dear Experts,

During a hydrostatic test, we observed a gradual pressure drop of approximately 0.7 bar in a 2-inch pipe with a length of 31 meters. The test pressure was 12.5 bar. This issue has occurred in multiple tests.

We request your explanation regarding the relationship between pressure and temperature, and how temperature variations can affect hydrotest results.Also, we seek clarification on the acceptable pressure drop limits considering potential temperature changes during the test.

Thank you for your support.

Regards,

Vinoth G

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[MW:35674] Welding electrodes

Re: [MW:35673] Selection of Filler/Electrode.

i think that NICr3 is Inconel 600.

Inconel & Incoloy have vast differences in % Fe. content.

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, ISO 3834, EN 15085, 

International Welding Engineer. 

CONSULTANT-WELDING & QUALITY

Mobile no: +919940739349

On Sat, Jun 7, 2025 at 2:43 PM sridhar cn <sridharcn305@gmail.com> wrote:

For best results, use AWS A 5.14 ER Ni Cr-3 (Incoloy 800) filler wire for the weld metal when joining the Incoloy 800 tube to Super Duplex 

F53 SDSS tube sheet. This filler wire provides good compatibility with both materials, accommodates differences in thermal stability, and 

maintains corrosion resistance and mechanical strength. 

Alternatively, AWS A 5.14 ERNiCrMo-3 (Inconel 625) could be used for a Chloride rich or acidic atmosphere.

rgds,

C Sridhar.

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

On Sat, 7 Jun 2025 at 09:28, HerculanJohn <hjpr820@gmail.com> wrote:

Dear Gentlemen,

Kindly advise me as we have tube to tubesheet joint.

Tube moc is incoloy 800

And tubesheet moc is F53 SDSS (Super duplex stainless steel).

For incoloy-800 -- P NO : 45

For F53 SDSS-- P NO: 10H

Which filler wire is applicable please suggest.

Best Regards,

John 

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Re: [MW:35675] Welding electrodes

Use E7018-1

On Tue, Jun 10, 2025, 11:27 PM sriram Srinivasan <mail2ram40@gmail.com> wrote:

Hi gentleman 

What is electrode need to use welding EN100025 S355 and rail 71 mn 

Please guide me 

Regards, Sriram Srinivasan

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Re: [MW:35677] Welding electrodes

S355 is a medium-strength structural steel, and think the rail has  0.4–0.8% Carbon. The 70mm thick rail requires preheating to 250–300°C to 

reduce thermal stresses and prevent hydrogen cracking. Post-weld heat treatment (PWHT) may also be needed depending on the rail grade.

E7018 (3.2mm or 4.0mm) is suitable as the first choice. Alternatively, consider E8018-C1 for better toughness and it has better compatibility

compared to E 7018 due to its Nickel  addition . 

C Sridhar.

On Tue, 10 Jun 2025 at 20:57, sriram Srinivasan <mail2ram40@gmail.com> wrote:

Hi gentleman 

What is electrode need to use welding EN100025 S355 and rail 71 mn 

Please guide me 

Regards, Sriram Srinivasan

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Re: [MW:35678] Welding electrodes

When welding EN 10025 S355 steel (a structural steel) and rail steel (e.g., R260 or similar grades like 71 Mn)

With Regards
Anish R Kurup

On Tue, 10 Jun, 2025, 10:29 pm sridhar cn, <sridharcn305@gmail.com> wrote:

S355 is a medium-strength structural steel, and think the rail has  0.4–0.8% Carbon. The 70mm thick rail requires preheating to 250–300°C to 

reduce thermal stresses and prevent hydrogen cracking. Post-weld heat treatment (PWHT) may also be needed depending on the rail grade.

E7018 (3.2mm or 4.0mm) is suitable as the first choice. Alternatively, consider E8018-C1 for better toughness and it has better compatibility

compared to E 7018 due to its Nickel  addition . 

C Sridhar.

On Tue, 10 Jun 2025 at 20:57, sriram Srinivasan <mail2ram40@gmail.com> wrote:

Hi gentleman 

What is electrode need to use welding EN100025 S355 and rail 71 mn 

Please guide me 

Regards, Sriram Srinivasan

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Re: [MW:35680] Welding electrodes

S355 is a structural steel grade with a minimum yield strength of 355 Mpa and has 1.0–1.6% Mn. R260 is a rail steel grade with a 

tensile strength of 700–900 Mpa, 0.6–0.8% C and 0.8–1.3% Mn. It is prone to martensitic formation during welding due to its higher 

Carbon content. Carbon Equivalent (CE) for R260 is 0.8–1.0 and for S355, 0.4–0.5.

 

E7018-1 (AWS A5.1) with a 1.0–1.6% Mn suits R260 which has a higher Mn. Alternatively, E8018-G or E10018-D2 provide enhanced 

strength and toughness. Preheat R 260 to 200–250°C and possibly PWHT (600-650⁰C) may be required depending on its thickness 

and critical applications. Ensure proper joint design to manage stress. Qualify a procedure as per relevant codes. 

C Sridhar.

--------------------------------------------------------------------------------------------------------------------------------------------------------------------------

On Wed, 11 Jun 2025 at 09:24, Anish R Kurup <anishkrp4@gmail.com> wrote:

When welding EN 10025 S355 steel (a structural steel) and rail steel (e.g., R260 or similar grades like 71 Mn)

With Regards
Anish R Kurup

On Tue, 10 Jun, 2025, 10:29 pm sridhar cn, <sridharcn305@gmail.com> wrote:

S355 is a medium-strength structural steel, and think the rail has  0.4–0.8% Carbon. The 70mm thick rail requires preheating to 250–300°C to 

reduce thermal stresses and prevent hydrogen cracking. Post-weld heat treatment (PWHT) may also be needed depending on the rail grade.

E7018 (3.2mm or 4.0mm) is suitable as the first choice. Alternatively, consider E8018-C1 for better toughness and it has better compatibility

compared to E 7018 due to its Nickel  addition . 

C Sridhar.

On Tue, 10 Jun 2025 at 20:57, sriram Srinivasan <mail2ram40@gmail.com> wrote:

Hi gentleman 

What is electrode need to use welding EN100025 S355 and rail 71 mn 

Please guide me 

Regards, Sriram Srinivasan

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[MW:35681] Welding Expertise Required for Dissimilar Materials

Dear Expert's

I hope this email finds you well. I am working on a project involving welding of dissimilar materials. The materials are IS 2062 E250 Gr.BR and AISI 420.

Could you please provide guidance on the following:

1. Suitable electrodes for welding IS 2062 E250 BR to AISI 420 using:
- Shielded Metal Arc Welding (SMAW) process
- Gas Metal Arc Welding (GMAW) process
2. Equivalent material specification for AISI 420 as per ASME standards

Your expertise would be greatly appreciated in helping us determine the most suitable welding approach and materials for this project.

Thank you for your time and assistance.

Best regards,
Pankaj Choudhary

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Re: [MW:35682] Welding Expertise Required for Dissimilar Materials

Dear Sir,

We appreciate your detailed query regarding the welding of dissimilar materials—IS 2062 E250 Gr.BR (a carbon structural steel) to AISI 420 (a martensitic stainless steel). Please find our recommendations below:

---

1. Suitable Electrodes for Dissimilar Welding

a) SMAW Process (Shielded Metal Arc Welding):

For joining IS 2062 to AISI 420, austenitic stainless steel electrodes are generally preferred to accommodate the differences in mechanical and metallurgical properties. We recommend:

• E309L-16 or E309-16
  These electrodes offer good compatibility with both carbon steel and martensitic stainless steel, while providing austenitic weld metal that helps reduce cracking.

b) GMAW Process (Gas Metal Arc Welding):

For GMAW (MIG welding), suitable filler wires would be:

• ER309L or ER309
  These wires provide excellent fusion and mechanical properties for dissimilar welding between carbon steel and stainless steel.

Note: Preheat may be required (especially for AISI 420) to reduce hardness and cracking tendencies. Post-weld heat treatment (PWHT) may also be considered depending on the service condition.

---

2. Equivalent Specification for AISI 420 as per ASME Standards:

• The nearest ASME equivalent for AISI 420 is typically UNS S42000, which corresponds to:

  • SA-240 Type 420 (for plate),

  • or SA-182 Type 420 (for forged bars and flanges),

  • or SA-479 Type 420 (for bars and shapes).

---

Best regards,

Nilesh Boricha - Boricha Group / FabX  Technocrats / SunRay Weldcrats
📞 +91 84016 62421
✉️ nilesh.boricha@borichagroup.com

On Fri, Jun 13, 2025 at 5:40 PM pankaj pachahara <pankajpachahara@gmail.com> wrote:

Dear Expert's

I hope this email finds you well. I am working on a project involving welding of dissimilar materials. The materials are IS 2062 E250 Gr.BR and AISI 420.

Could you please provide guidance on the following:

1. Suitable electrodes for welding IS 2062 E250 BR to AISI 420 using:
- Shielded Metal Arc Welding (SMAW) process
- Gas Metal Arc Welding (GMAW) process
2. Equivalent material specification for AISI 420 as per ASME standards

Your expertise would be greatly appreciated in helping us determine the most suitable welding approach and materials for this project.

Thank you for your time and assistance.

Best regards,
Pankaj Choudhary

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[MW:35683] ALUMINUM P NO F NO

Dear all 

 Please clarify below 

1.5083H116 P NO 

2 . ER 5183 F NO

3.6082 T651

4.ER 5356 F NO

Regards 

Elavarasan 

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Re: [MW:35684] ALUMINUM P NO F NO

P Number for 5083-H116: 25

P Number for 6082-T651: 23
F Number for ER 5183:    22
F Number for ER 5356:    22
These classifications are used for qualifying welding procedures and welders. 

C Sridhar. 

On Mon, 16 Jun 2025 at 16:06, Elavarasan Mech <elavarasan1861994@gmail.com> wrote:

Dear all 

 Please clarify below 

1.5083H116 P NO 

2 . ER 5183 F NO

3.6082 T651

4.ER 5356 F NO

Regards 

Elavarasan 

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[MW:35685] HDPE WPS

Dear friends,

I need to prepare a WPS for the HDPE liner pipes. As any body have it, kindly share it with me. 

Thanks in advance.

Regards,

Sudharsan S

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[MW:35633] IP Joint

Hello experts,

I would like to know what is IP joints in piping(31.3)? 

Regards

Saurabh

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Re: [MW:35634] Can we avoid PWHT for P No.5A to P No.1 , 10mm weld joint ?

Dear Sir,

Thank you for your explanation. 

As the vessel design based on Sec VIII Div-1, and if our client  insists to do PWHT for that joint,

 Case 1) can we do a pqr by buttering with ERNiCr-3 on P No.5A plate and butt weld with same filler for this dissimilar joint to avoid pwht.

Because,  for P no.1 , the holding temperature is about 600 deg C and for P No.5A, the holding temperature is about 675 degrees C as per Sec VIII Div1,.

Case 2) Or , when we do pwht for this joint using ER80S-B2 filler,  can we use higher holding temperature of 675 degree C .

METALLURGICALLY, is it safe ?

Please confirm. 

Thanks and Regards, 

Saravanan Sornam, 

S.KOREA 

On Fri, 23 May 2025, 8:43 pm George Dilintas, <dilintas@gmail.com> wrote:

in case the nominal base metal thickness is less than 16 mm and the specified Cr% is less than 3 (you must check the base metal MTRs) and the max C% is 0,15 (check MTR) and you apply a min preheat of 150degC then you are allowed not to perform PWHT, as per Section I

Δρ. Γεώργιος Διλιντάς

Ηπείρου 5 , Μελίσσια - 15127

Αεροναυπηγος Μηχανικός - Μελος ΤΕΕ 55018

Τηλ +30 210 8100578, +30 6944 646 204

Dr. Georgios Dilintas,

Dipl. Ing. In Aeronautic and Space Engineering

Ph.D in Mechanics of Solids - Computational Mechanics

A.I.S, A.N.I,  Lead Auditor

Welding, Stress Analysis, Corrosion, QA/QC, Failure Analysis, Risk Analysis

Στις Παρ 23 Μαΐ 2025 στις 5:36 π.μ., ο/η PARAI Reaction Channel <saravanshyla@gmail.com> έγραψε:

Dear Sir, 

It is a condensate receiver tank and it is a design requirement from client side.

Regards, 

Saravanan. 

S.KOREA 

On Thu, 22 May 2025, 9:26 pm Raghuram Bathula, <raghurambathula@gmail.com> wrote:

Why do you use P22 nozzles on CS?

On Thu, 22 May 2025, 16:24 PARAI Reaction Channel, <saravanshyla@gmail.com> wrote:

Dear Sirs ,

 

We have a project with both shell and Reinforcement Pad materials SA516-70, 10 mm Thk ( P No.1 ) and the Nozzle is SA335-P22, 4" Sch 120 , 

11.1 mm ( P No.5A ) Thk.

 We already have a qualified WPS & PQR with 8mm GTAW and tested about 10 years ago by other welding engineer, for P No,.5A to P No.1 without PWHT and it was satisfactorily passed and we 

have used that WPS & PQR for the previous project 10 years ago and no 

issues found without PWHT.

 Now for the new project, we are going to use the same WPS and apply 

Preheat ( 204 to 250 Deg C ) as per the WPS for 10mm Shell Thk by 

multipass welding, refer to the below sketches.

So, i would like to confirm whether PWHT is mandatory as per UCS-56-4 ?

Can we avoid PWHT for this 10mm weld joint ?

Or Should we do buttering with ERNiCr-3 on P No.5A bevel and butt weld 

with same filler for this dissimilar joint to avoid PWHT after making new 

PQR with buttering?

Please confirm soon.

Thanks and Regards,

Saravanan Sornam,

ANSAN-Si,

S.Korea 

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