Materials & Welding: 2024

Wednesday, December 18, 2024

[MW:35346] Cast-iron welding

Any advice for cast iron welding

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Re: [MW:35346] Applicability of Impact requirement

Dear sir

Check your drawing about thickness and MDMT

Refer UCS 66 and check

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On 15 Dec 2024, at 1:19 PM, 'james gerald' via Materials & Welding <materials-welding@googlegroups.com> wrote:

Provided welding consumable guaranteed impact tested as per ASME SecIIC

Yahoo Mail: Search, organise, conquer

On Sun, 15 Dec 2024 at 13:13, 'james gerald' via Materials & Welding
<materials-welding@googlegroups.com> wrote:

No impact test required

Yahoo Mail: Search, organise, conquer

On Fri, 13 Dec 2024 at 20:11, Chirag Patel
<chiragp1985@gmail.com> wrote:

Dear All,
Design code – ASME B31.3, Welding Code- ASME BPVC SEC IX
Material to be used used during Fabrication - SA 516 Gr 70
Production Thickness range-8 mm(Minimum)- 20mm(Maximum)
PWHT – Nil
MDMT-= -29 Deg Cel.
Kindly give your valuable suggestions for applicability of PQR impact requirement for above details.
Pl.reply with code clause.

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[MW:35346] PCN -PAUT Institute

Dear all,

Pls let me know the best PCN -PAUT Institute in India,

Thanks in advance,

Thanks and regards,

SENTHIL P

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Re: [MW:35349] Cast-iron welding

Pl contact consumable supplier He will guide you

There are consumable available for Cast iron .

Pre heating and consumable are addressed data sheets

Vishwas

IWE

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On 18 Dec 2024, at 4:39 PM, elams.rajan@gmail.com wrote:

Any advice for cast iron welding

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Re: [MW:35350] Cast-iron welding

Proper metallurgical answer: don't weld

If one needs to weld anyway, then are 2 options:

1) High preheat 500 - 700 degrees centigrade, preferred in a furnace, welding with Acetylene Oxygen flame with special cast iron welding bars, slow cooling afterwards, risk of size tolerance issues

2) Cold, low input 2.5 mm SMAW process, with hammering the hot weld metal to reduce thermal stress in the HAZ , risk of cracking

Keep in mind that risk of failure is large

Good luck

Weld-Tech BV

Jurgen Prinsen (MSc/IWE)

Van: "elams rajan" <elams.rajan@gmail.com>
Aan: "materials-welding" <materials-welding@googlegroups.com>
Verzonden: Woensdag 18 december 2024 11:25:15
Onderwerp: [MW:35346] Cast-iron welding

Any advice for cast iron welding

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Re: [MW:35350] Cast-iron welding

Dear Friend,

Greetings of the day.

Cast Iron is normally not weldable as like Steel.

In some cases,you can use high nickel content electrodes for welding.Contact your Electrode Supplier.

Regards,

Devii

On Wed, 18 Dec, 2024, 4:39 pm , <elams.rajan@gmail.com> wrote:

Any advice for cast iron welding

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Re: [MW:35350] Cast-iron welding

Dear Mr. Rajan,

Following steps will help to weld Cast iron successfully.

a. Preheat the CI to a min. of 250-300 deg C to avoid cracking tendency using Oxy fuel or LPG torches. Maintain

inter-pass temperature till the welding is complete.

b. For non machinable welding of CI, use LH electrodes like E 7018 , E 8018 C-1 with SMAW process.

c. Use stringer beads and avoid weaving. Use short beads and peening (for each run) to reduce the stresses during welding.

d. For machinable welding, ENi-CI (pure Nickel) or Ni-Fe (Nickel iron) could be used for both Grey and ductile cast iron.

Both also have superior corrosion resistance properties. FCAW process with similar chemistry could be used as an alternative.

e. CI can be welded with SS electrodes like E 308 and E 309 type also effectively.

f. Any cracks propped up during welding should be removed by grinding and rewelded as mentioned above.

g. Allow the weld and HAZ zone to cool slowly, possibly wrapping it in an insulation blanket like Asbestos cloth or covering

with dry sand.

h. Use DP check at room temp. to check the final weld quality.

Hope the above details will help you to weld the CI without any defects.

C Sridhar.

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

On Wed, 18 Dec 2024 at 16:39, <elams.rajan@gmail.com> wrote:

Any advice for cast iron welding

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Re: [MW:35353] Cast-iron welding

you could braze it...

On Wed, Dec 18, 2024 at 5:41 AM sridhar cn <sridharcn305@gmail.com> wrote:

Dear Mr. Rajan,
Following steps will help to weld Cast iron successfully.
a. Preheat the CI to a min. of 250-300 deg C to avoid cracking tendency using Oxy fuel or LPG torches. Maintain
inter-pass temperature till the welding is complete.
b. For non machinable welding of CI, use LH electrodes like E 7018 , E 8018 C-1 with SMAW process.
c. Use stringer beads and avoid weaving. Use short beads and peening (for each run) to reduce the stresses during welding.
d. For machinable welding, ENi-CI (pure Nickel) or Ni-Fe (Nickel iron) could be used for both Grey and ductile cast iron.
Both also have superior corrosion resistance properties. FCAW process with similar chemistry could be used as an alternative.
e. CI can be welded with SS electrodes like E 308 and E 309 type also effectively.
f. Any cracks propped up during welding should be removed by grinding and rewelded as mentioned above.
g. Allow the weld and HAZ zone to cool slowly, possibly wrapping it in an insulation blanket like Asbestos cloth or covering
with dry sand.
h. Use DP check at room temp. to check the final weld quality.

Hope the above details will help you to weld the CI without any defects.

C Sridhar.
---------------------------------------------------------------------------------------------------------------------------------------------------

On Wed, 18 Dec 2024 at 16:39, <elams.rajan@gmail.com> wrote:

Any advice for cast iron welding

Sent from Yahoo Mail for iPhone

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Monday, December 16, 2024

[MW:35330] Corrosion Rate criteria for material UNS N06022 nickel alloy

Team,

This is regarding material UNS N06022.

The corrosion Test is carried out as per ASTM G28 Method A.

The test result is 37.762 mpy (0.9592 mm/year).

May I know which standard provides acceptance criteria (range) for corrosion rate?

Regards,

Vivek

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[MW:35331] API 650 radiography requirements

API 650 standard for spot/full radiography- could anyone please help to advise the RT %

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[MW:35332] Applicability of Impact requirement

Dear All,

Design code – ASME B31.3, Welding Code- ASME BPVC SEC IX

Material to be used used during Fabrication - SA 516 Gr 70

Production Thickness range-8 mm(Minimum)- 20mm(Maximum)

PWHT – Nil

MDMT-= -29 Deg Cel.

Kindly give your valuable suggestions for applicability of PQR impact requirement for above details.

Pl.reply with code clause.

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[MW:35334] Need suggestion

I am having WPS impact temperature range with -20 degree. Can i do the welding for -29 degree impact requirement job as per ASME code

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Re: [MW:35336] Need suggestion

What is MDMT in drawing ?

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On 13 Dec 2024, at 8:12 PM, Chirag Patel <chiragp1985@gmail.com> wrote:

I am having WPS impact temperature range with -20 degree. Can i do the welding for -29 degree impact requirement job as per ASME code
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Re: [MW:35337] Need suggestion

you are allowed to use said wps for welding of job having mdmt -20c and warmer

Hegde

Yahoo Mail: Search, organise, conquer

On Fri, 13 Dec 2024 at 20:12, Chirag Patel
<chiragp1985@gmail.com> wrote:

I am having WPS impact temperature range with -20 degree. Can i do the welding for -29 degree impact requirement job as per ASME code
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Re: [MW:35338] Need suggestion

Dear Chirag,

It depends on the material and the minimum temperature mentioned in ASME B31.3 (if applicable).

for CS material criteria to be defined based on the Table 323.2.2 of applicable 31.3 code.

Thanks

Sharief

On Fri, Dec 13, 2024 at 5:42 PM Chirag Patel <chiragp1985@gmail.com> wrote:

I am having WPS impact temperature range with -20 degree. Can i do the welding for -29 degree impact requirement job as per ASME code
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Kind Regards,

Muhammed Sharief

QC Supervisor

Tamimi Industrial Services

(Branch of Tamimi Global Co. Ltd.)

Tel: +966 13 341 1391 Ext. 3228

Mobile: +966 539141980

E Mail : mpazhadathil@al-tamimi.com

Website: www.tamimi-tis.com

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Re: [MW:35338] Need suggestion

It will be decided based on Thickness, Material specification as sometimes there may be Base Material Impact exemptions.

Thanks & Regards

J.Gerald Jayakumar

0091-8838619635

On Saturday 14 December, 2024 at 02:01:39 pm IST, 'Prakash Hegde' via Materials & Welding <materials-welding@googlegroups.com> wrote:

you are allowed to use said wps for welding of job having mdmt -20c and warmer

Hegde

Yahoo Mail: Search, organise, conquer

On Fri, 13 Dec 2024 at 20:12, Chirag Patel
<chiragp1985@gmail.com> wrote:

I am having WPS impact temperature range with -20 degree. Can i do the welding for -29 degree impact requirement job as per ASME code
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Re: [MW:35340] Need suggestion

Also specify the Design Code such as ASME B31.3; -29degC is a general cutoff for carbon steels such as a106Gr.B, A105 etc..

Thanks & Regards

J.Gerald Jayakumar

0091-8838619635

On Saturday 14 December, 2024 at 05:59:09 pm IST, 'james gerald' via Materials & Welding <materials-welding@googlegroups.com> wrote:

It will be decided based on Thickness, Material specification as sometimes there may be Base Material Impact exemptions.

Thanks & Regards

J.Gerald Jayakumar

0091-8838619635

On Saturday 14 December, 2024 at 02:01:39 pm IST, 'Prakash Hegde' via Materials & Welding <materials-welding@googlegroups.com> wrote:

you are allowed to use said wps for welding of job having mdmt -20c and warmer

Hegde

Yahoo Mail: Search, organise, conquer

On Fri, 13 Dec 2024 at 20:12, Chirag Patel
<chiragp1985@gmail.com> wrote:

I am having WPS impact temperature range with -20 degree. Can i do the welding for -29 degree impact requirement job as per ASME code
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Re: [MW:35341] Need suggestion

3 Degree

On Sat, 14 Dec, 2024, 8:43 am Vishwas Keskar, <vvkeskar123@gmail.com> wrote:

What is MDMT in drawing ?
Sent from my iPhone

On 13 Dec 2024, at 8:12 PM, Chirag Patel <chiragp1985@gmail.com> wrote:

I am having WPS impact temperature range with -20 degree. Can i do the welding for -29 degree impact requirement job as per ASME code
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Re: [MW:35342] Applicability of Impact requirement

No impact test required

Yahoo Mail: Search, organise, conquer

On Fri, 13 Dec 2024 at 20:11, Chirag Patel
<chiragp1985@gmail.com> wrote:

Dear All,
Design code – ASME B31.3, Welding Code- ASME BPVC SEC IX
Material to be used used during Fabrication - SA 516 Gr 70
Production Thickness range-8 mm(Minimum)- 20mm(Maximum)
PWHT – Nil
MDMT-= -29 Deg Cel.
Kindly give your valuable suggestions for applicability of PQR impact requirement for above details.
Pl.reply with code clause.

--
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Re: [MW:35343] Applicability of Impact requirement

Provided welding consumable guaranteed impact tested as per ASME SecIIC

Yahoo Mail: Search, organise, conquer

On Sun, 15 Dec 2024 at 13:13, 'james gerald' via Materials & Welding
<materials-welding@googlegroups.com> wrote:

No impact test required

Yahoo Mail: Search, organise, conquer

On Fri, 13 Dec 2024 at 20:11, Chirag Patel
<chiragp1985@gmail.com> wrote:

Dear All,
Design code – ASME B31.3, Welding Code- ASME BPVC SEC IX
Material to be used used during Fabrication - SA 516 Gr 70
Production Thickness range-8 mm(Minimum)- 20mm(Maximum)
PWHT – Nil
MDMT-= -29 Deg Cel.
Kindly give your valuable suggestions for applicability of PQR impact requirement for above details.
Pl.reply with code clause.

--
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Re: [MW:35344] Applicability of Impact requirement

Hope the snap shor helps to understand the requirement

Thanks & Regards

J.Gerald Jayakumar

0091-8838619635

On Sunday 15 December, 2024 at 01:19:07 pm IST, 'james gerald' via Materials & Welding <materials-welding@googlegroups.com> wrote:

Provided welding consumable guaranteed impact tested as per ASME SecIIC

Yahoo Mail: Search, organise, conquer

On Sun, 15 Dec 2024 at 13:13, 'james gerald' via Materials & Welding
<materials-welding@googlegroups.com> wrote:

No impact test required

Yahoo Mail: Search, organise, conquer

On Fri, 13 Dec 2024 at 20:11, Chirag Patel
<chiragp1985@gmail.com> wrote:

Dear All,
Design code – ASME B31.3, Welding Code- ASME BPVC SEC IX
Material to be used used during Fabrication - SA 516 Gr 70
Production Thickness range-8 mm(Minimum)- 20mm(Maximum)
PWHT – Nil
MDMT-= -29 Deg Cel.
Kindly give your valuable suggestions for applicability of PQR impact requirement for above details.
Pl.reply with code clause.

--
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Sunday, December 1, 2024

[MW:35320] Pipe Insert Sleeve - How to ensure after hydrotest No Water

Dear All,

Please see below picture Pipe Insert Sleeve in my site taking trial and completed hydrotest as proto type. Now how to ensure there is no water between Pipeline and insert sleeve.

Any body have experienced in this please give feedback.

Thanks

Thank you,

Regards,

S.SENTHILKUMAR

Re: [MW:35322] Pipe Insert Sleeve - How to ensure after hydrotest No Water

Dear Mr. Aravindh,

Thank you for your reply.

How did you have ensured there is no water between sleeve insert and pipe?

This insert used not to get corrosion inside weld joint area. While performing trail we have prove that no hydrotested water entered in very tiny gap.

Thank you,

Regards,

S.SENTHILKUMAR

On Tuesday 12 November, 2024 at 05:47:07 am GMT+3, s.aravindh ram <aravindhram22@gmail.com> wrote:

Dear sir,
I have worked in oman, used this high pressure line we will apply gloves insert this bevel joint after welding welding complete hydrotest will be conducted as per designed pressure,
After that testing we will the spool for erection.
Thankyou
Aravindh

On Fri, 8 Nov 2024, 7:09 pm 'SENTHILKUMAR SWAMINATHAN' via Materials & Welding, <materials-welding@googlegroups.com> wrote:

Dear All,

Please see below picture Pipe Insert Sleeve in my site taking trial and completed hydrotest as proto type. Now how to ensure there is no water between Pipeline and insert sleeve.
Any body have experienced in this please give feedback.
Thanks

Thank you,
Regards,
S.SENTHILKUMAR

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[MW:35324] Pipe 304L(P8) – Pipe 304L(P8)

Can anyone provide some assistance in the issue identified below:

The details are as follows:

Details

Parent material Pipe 304L(P8) – Pipe 304L(P8)

Inservice temperature range – 35-85 °C

Operating Pressure – 0.4 -0.5 MPaG

Process Type – Process Condensate.

Carbonic acid – there may be the presence of carbonic acid as indicated by CGCL.

Approved Process

WPS# P8-P8 AR - Filler material ER308L- F6 filler metal

Quality Issue

ER308H rods were used instead of ER308L on two locations of the 304L piping.

Technical Advice Request

The client indicated that the use of the ER308H Filler Wire instead of the ER308L has a higher risk of intergranular corrosion and corrosion related issues.

Please advise on the short term or long-term quality effects on the integrity of the welded joints where the ER308H filler wire were utilized.

Thanking you in advance.

Mark Nunes

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[MW:35325] Re: Pipe 304L(P8) – Pipe 304L(P8)

Hi Mark,

ER308H

Carbon Content : High Carbon Content (0.04%-0.08%)

Strength : Higher strength at elevated temperature due to its carbon content, suitable for high-temperature service applications

Corrosion Resistance: Slightly reduced compared to ER308L because higher carbon content can lead to sensitization (formation of chromium carbides at grain boundaries)

Applications: Used in applications requiring creep resistance or operation at elevated temperatures, such as in power plants, boilers, and chemical plants.

ER308L

Carbon Content: Low carbon content (<0.03%).

Strength: Lower strength compared to ER308H, especially at high temperatures.

Corrosion resistance: Superior to ER308H because low carbon minimizes the risk of sensitization and intergranular corrosion, especially in as-welded conditions.

Applications: Ideal for applications where corrosion resistance is critical, such as food processing equipment, chemical tanks, and piping systems, used for welding 304L or 304-grade SS, particularly where PWHT is not feasible.

On Monday, November 18, 2024 at 8:09:22 PM UTC+8 Marco Nunes wrote:

Can anyone provide some assistance in the issue identified below:

The details are as follows:

Details

Parent material Pipe 304L(P8) – Pipe 304L(P8)
Inservice temperature range – 35-85 °C
Operating Pressure – 0.4 -0.5 MPaG
Process Type – Process Condensate.
Carbonic acid – there may be the presence of carbonic acid as indicated by CGCL.

Approved Process

WPS# P8-P8 AR - Filler material ER308L- F6 filler metal

Quality Issue

ER308H rods were used instead of ER308L on two locations of the 304L piping.

Technical Advice Request

The client indicated that the use of the ER308H Filler Wire instead of the ER308L has a higher risk of intergranular corrosion and corrosion related issues.

Please advise on the short term or long-term quality effects on the integrity of the welded joints where the ER308H filler wire were utilized.

Thanking you in advance.

Mark Nunes

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Materials & Welding

Wednesday, December 18, 2024

[MW:35346] Cast-iron welding

Re: [MW:35346] Applicability of Impact requirement

[MW:35346] PCN -PAUT Institute

Re: [MW:35349] Cast-iron welding

Re: [MW:35350] Cast-iron welding

Re: [MW:35350] Cast-iron welding

Re: [MW:35350] Cast-iron welding

Re: [MW:35353] Cast-iron welding

Monday, December 16, 2024

[MW:35330] Corrosion Rate criteria for material UNS N06022 nickel alloy

[MW:35331] API 650 radiography requirements

[MW:35332] Applicability of Impact requirement

[MW:35334] Need suggestion

Re: [MW:35336] Need suggestion

Re: [MW:35337] Need suggestion

Re: [MW:35338] Need suggestion

Re: [MW:35338] Need suggestion

Re: [MW:35340] Need suggestion

Re: [MW:35341] Need suggestion

Re: [MW:35342] Applicability of Impact requirement

Re: [MW:35343] Applicability of Impact requirement

Re: [MW:35344] Applicability of Impact requirement

Sunday, December 1, 2024

[MW:35320] Pipe Insert Sleeve - How to ensure after hydrotest No Water

Re: [MW:35322] Pipe Insert Sleeve - How to ensure after hydrotest No Water

[MW:35324] Pipe 304L(P8) – Pipe 304L(P8)

[MW:35325] Re: Pipe 304L(P8) – Pipe 304L(P8)

[MW:35346] Cast-iron welding

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