Re: [MW:34725] A 333 Gr.6 toughness test

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

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Re: [MW:34723] A 333 Gr.6 toughness test

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

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[MW:34719] Equivalent IS Grade to API 5LX70

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

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Re: [MW:34719] After Stabilize Heat treatment of 347H weld material Linear indication observed

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..

 

Do a detailed inspection for the root cause. If the indications are due to common welding technique related, such as "LOF", then the solutions are easy. If these are cracks after Stabilizing HT then the above mentioned cracking is one of the root cause/s. One has to carefully grind and weld repair. Smaller areas may be repaired by "Controlled Deposition Technique".

 

You may find more resources in API -TR-942B.

 

Thanks.

 

 

Pradip Goswami.P.Eng, IWE.

Consulting Welding & Metallurgical Engineering Specialist

Linkedin: https://www.linkedin.com/in/pradip-goswami-2999855/

Email:pgoswami@rogers.com,pradip.goswami@gmail.com

Cell/Whasapp:1-905-9793232

 

From: materials-welding@googlegroups.com <materials-welding@googlegroups.com> On Behalf Of Jenish Mistry
Sent: Thursday, December 28, 2023 1:59 AM
To: materials-welding@googlegroups.com
Subject: Re: [MW:34716] After Stabilize Heat treatment of 347H weld material Linear indication observed

 

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)

Welding consumable : ER 347 with carbon greater than & equal to 0.04%.

 

Please give your inputs to eliminate linear indication. 

 

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Re: [MW:34716] After Stabilize Heat treatment of 347H weld material Linear indication observed

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)

Welding consumable : ER 347 with carbon greater than & equal to 0.04%.

Please give your inputs to eliminate linear indication. 

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Re: [MW:34714] After Stabilize Heat treatment of 347H weld material Linear indication observed

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. 

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[MW:34712] Interpass Temperture - Reg

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

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[MW:34707] Re: Ice formation in SS 316

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:

1. 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.
2. 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:

1. Insulation: Providing insulation to the stainless steel structure can help maintain higher temperatures and prevent the formation of ice. This is particularly important in applications where the material is exposed to low ambient temperatures.
2. Heating Systems: Implementing heating systems, such as trace heating or electric heaters, can prevent the accumulation of ice on the surface of SS316. These systems can maintain the material at a temperature above the freezing point.
3. Anti-Icing Coatings: Applying anti-icing coatings to the surface of SS316 can inhibit the formation of ice. These coatings are designed to reduce the adhesion of ice and promote easy removal.
4. Thermal Blankets: Using thermal blankets or covers can help retain heat and prevent the cooling of SS316 in cold environments.
5. Proper Design: Ensure that the design of the structure takes into account the environmental conditions it will be exposed to. This includes considering insulation, heating elements, and other preventive measures during the design phase.
6. Regular Maintenance: Regularly inspecting and maintaining the equipment and structures made of SS316 is crucial. Identifying and addressing potential issues early can prevent the formation of ice-related damage.

Regards,

BalakrR

On Monday, December 25, 2023 at 6:54:15 PM UTC+8 Manish Kumar wrote:

Hi,

As per attachment please share the information about damage mechanism and mitigate action to prevent the ice formation in SS316 material.

Regards

Manish Kumar 

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Re: [MW:34707] After Stabilize Heat treatment of 347H weld material Linear indication observed

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. 

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Re: [MW:34705] After Stabilize Heat treatment of 347H weld material Linear indication observed

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. 

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[MW:34703] After Stabilize Heat treatment of 347H weld material Linear indication observed

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. 

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Re: [MW:34696] Increase in soaking time

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 

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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. 

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[MW:34695] Increase in soaking time

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. 

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Re: [MW:34693] PQR qualification with pipe & flange

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

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

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Re: [MW:34693] Tensile test of IS2062

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?? 

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[MW:34688] WPS Required for Q245 R

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

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Re: [MW:34688] Radiography for Forged valve

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                                               Forgings which can be controlled.

     affect the Integrity of the valve

2.  Normally no Heat Treatment after castings                           2. Forgings receives Grain refining Heat 

                                                                                                        Treatment and better rpoperties.

3. No limitation on Sizes of Valves                                             3. Only smaller sizes mostly

4. Low cost                                                                                 4. Higher cost

RT is specified only to Cast valves because it is prone to Defects like Porosities & inclusion.

Thanks & Regards

J.Gerald Jayakumar

On Wednesday, 6 December, 2023 at 08:53:31 pm IST, 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.

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Re: [MW:34688] How to select WPS Electrical parameters

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

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Re: [MW:34688] PQR qualification with pipe & flange

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

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Re: [MW:34688] Radiography for Forged valve

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.

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[MW:34684] Radiography for Forged valve

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.

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Re: [MW:34684] How to select WPS Electrical parameters

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

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Re: [MW:34684] Impact testing - V NOTCH CHARPY. Recommendation

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 temperature? eg... the specimen should sustain 12 J impact at -20c in order to qualify. 

On Mon, Dec 4, 2023 at 5:30 PM 'james gerald' via Materials & Welding <materials-welding@googlegroups.com> wrote:

A Charpy Impact test is not required for specimen thickness less than 2.5mm.

Subsize specimens can be machined from the Pipe OD 60mm and thickness 5.5mm. Please check with the Mechanical testing lab.

Please refer to ASME Sec.IIA section SA-370.

If specimen thickness exceeds 80% during machining from the original size, temperature reduction according to the Applicable Code shall be applied.

For subsize specimens Impact values refer to snap shot.

Thanks & Regards

J.Gerald Jayakumar

On Monday, 4 December, 2023 at 05:06:28 pm IST, Prats <prathameshpatkar@swastikindustriesindia.in> wrote:

Hello,

We have an impact testing requirement to be done on a pipe with an outer diameter of 60mm and a thickness of 5.5mm. 

What specimen size should we select for the testing? As the standard "ASTM E23-23A" states, specimen size should be 55L x 10W x 10 thick. We are a bit confused regarding the specimen size...has anyone faced a similar issue? please recommend 

Moreover, the specimen should sustain 27 J. 

Please help.

Thanks & Regards 

Prats

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Prathamesh S Patkar

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