[MW:27923] BEST FILLER METAL IN GMAW WELDING FOR CK45 TO ST52-3?

HI DEAR EXPERTS

BEST FILLER METAL IN GMAW WELDING FOR CK45 TO ST52-3?

ALSO

BEST FILLER METAL IN GMAW WELDING FOR A106 TO ST52-3?

MY BEST REGARD

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[MW:27922] Re: Non Standard Blind Flange (Fabricated from Plate)

SPACER & BLIND Thickness Calculation for Internal Pressure (ASME B 31.3)

SPACER & BLIND  Thickness Calculation  for Internal Pressure (ASME B 31.3)

******************************************************************

Step1: Select the Spacer & Blind Material

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

Step2: List Down

      Ø  Pipe Outside Diameter, (mm) = D

   Ø  Internal Design Pressure,(Kg/cm²) = P   

   Ø  Design Temperature, (C°) = T

For the material under consideration.

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

Step 3: List down

Ø  Allowable Stress, (Kg/cm²)  = S

ASME B 31.3 @ Design Temperature.  (TABLE A-1)

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

Step 4: Select

Ø  Joint Efficiency factor = E             (TABLE A-1A)

ASME B 31.3  (TABLE-1A)

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

Step 5: Select

Ø  Corrosion Allowance, (mm) = c

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

Step 6: Formula @ ASME B 31.3 

                                 3*P

tm   =    dg * √  (--------------)     +  c

                              16*S*E

tm= Calculated thickness including corrosion Allowance, (mm).

dg = Inside Dia. of gasket for RF/FF flanges or gasket pitch dia. for RTJ flanges, (mm).

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

Step 7: Compare thickness

If      t > tm

t = Thickness as per API 590

Then selected thickness of Spacer & Blind is OK,

Else revise the thickness.

Custom Flanges Manufacturer

在 2013年4月13日星期六 UTC+8下午11:19:37，Yass3r写道：

Dear Experts,

I am need of your help , i have got blind flange fabricated from plate selection chart from this forum but difficult to prove to client can you please give me code reference or derived formula.

Your Earliest Response is highly appreciated.

Thanks and Regards,

Yasir

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Re: [MW:27921] Permissible dent on pipe

what is ref std pl 

THANKS & BEST REGARDS,

KG.PANDITHAN, BE, IWE,  AWS-CWI, CSWIP 3.1,

CONSULTANT-WELDING & QUALITY

Mobile no: +919940739349

On Mon, May 28, 2018 at 10:27 PM, chandrakant mohikar <crmohikar@gmail.com> wrote:

Dent (buckling and or upheavel ) in piping shall be <2 %. In addition NDT shall be carried at dent location has to be as per requirement to ensure fitness of piping or RBI (Risk based inspection)

Chandrakant Mohikar

Ex. PDO / Co. Site Representative (Project QA)

8446079514

On Mon, 28 May 2018, 4:10 p.m. Anoj Singh, <nayaktp@gmail.com> wrote:

What is permissible dent on 10" sch. Std. Carbon steel seamless pipe?

Regards

Anoj singh

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Re: [MW:27915] UT area of concern items

Dear Ali,

Rep a-1) & a-2) I suggest you, go through ASME BPVC Sec. V, nonmandatory appendix B of article 4.

 

b) Whould you please introduce the reference? Generally the probe angle is not the most important factor affecting the mode conversion.

 

c) The first thing which will help the interpreter is imagination of the sound interaction with the workpiece. In addition the information about the base material and its capability to mode conversion, the probable defects, the geometrical parameters and …

Regards

On Sun, May 27, 2018 at 10:17 AM, Ali Asghari <asgharialigl@gmail.com> wrote:

Dear All.

a)Would you clear and explain these two paragraphs:

1.Measurements of beam spread for scan indexing limits shall be taken only when required by a referencing code section. Beam spread angles shall be measured once for a search unit wedge combination in the calculated far field at the beginning of each period of extended use, or every 3 months, whichever is less.(what is scan indexing limits and when is it used and how can be specified and based on which standard?)

2.Alternative methods of distance-amplitude of correction of sensitivity may be used provided the results are as reliable as those obtained by the acceptable method. In addition, the alternative method and its equipment shall meet all the performance requirements of this standard.(which alternative method of sensitivity calibration and in which standard are explained except as AWS D1.1)

b)and why mode conversion is more important and higher probable to happen for Probe 60 degree especially for corner square speciemen?

c) when the mode conversion in practical cases you have experienced mode conversion and get false indications and how find?

Regards.

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Re: [MW:27915] PWHT in Sulphur Storage Tanks

Dear Friend

Sulphur iscorrosive element form Sulphides to reduce the intensity of corrosion one must control its hardness below 185BHN or say as per NACE 

Therefore for NACE  application PWHT is essential Most of the time SA516 Gr 60 is recomended for CS eqpt

Regards

Hegde

On Friday, 25 May, 2018, 5:06:18 PM IST, pkkanishk2006@gmail.com <pkkanishk2006@gmail.com> wrote:

Dear Experts ,

Please can anyone help me to understand the requirement of PWHT in Sulphur Storage tankages . Is it normally needed ? Is anything else we have to look for other than thickness and Material Composition ? 

Kindly help with more details if i missed anything 

Regards,

Anand

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Re: [MW:27915] Dish end heat treatment.

Hi !

anyType of  Heat treatment on D/E after forming depends upon

i) Its Fibre elongation If it is >5% it it is asked by Code or Client spec Generally some code ask for Normalising or Stress relieving

ii) Some timeto control Hardness as per NACE it is recommended to go for PWHT

Therefore it is imporatant to satisfy code/spec requirement

 (Heat treatment of formed D/E is not harmful even if it is not addressed in spec  but one must ensure that its mechanical properties are not deteriorated  )

Regards

Hegde

On Monday, 28 May, 2018, 8:25:10 AM IST, chiluka venkatramulu <ramuluchiluka@gmail.com> wrote:

Can you provide me any code reference pl.

On Sun, May 27, 2018 at 8:15 PM, Nithin Joseph <nithindsilva4u@gmail.com> wrote:

Yes

On Sun, May 27, 2018 at 5:07 AM, chiluka venkatramulu <ramuluchiluka@gmail.com> wrote:

Dear All,

Can we do stress releaving of 14mm thick Dish ends after forming at 610 Deg Centigrade? One of our nedor did so. Can we accept it. Material is SA 516 Gr 70.

Regards,

Venkatramulu

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Re: [MW:27915] Impact requirement for pressure vessel plates

Not required. Impact test requirement is a function of Temperature and Thickness. Refer Table UCS-66 Curve D values for Normalised material. Moreover Weld Metal is also exempted from Impact tests if welding consumable is impacted tested at MDMT upto -46degC

Thanks & Regards

J.Gerald Jayakumar

0091-9344954677

On ‎Sunday‎, ‎May‎ ‎27‎, ‎2018‎ ‎04‎:‎00‎:‎06‎ ‎PM‎ ‎+04, 'anand gupta' via Materials & Welding <materials-welding@googlegroups.com> wrote:

Yes 

Impact test required at _30 °c

A p gupta 

IOCL

BARODA 

Sent from Yahoo Mail on Android

On Sun, 27 May 2018 at 11:03 AM, vishnudas balachandran

<vishnudasb@gmail.com> wrote:

Dear All,

Vessel Data,

MDMT = ( - 30 Deg C),

Plate thickness = 12mm,

Dished end = 12/14,

Material = SA 516 Gr.70 N.+ HIC

Design Code - ASME Sec VIII DIV 1.

Is Impact testing required ?

As per UG-20 (f) (3) ,

"Design temperature is no warmer than 650°F (345°C) nor colder than −20°F (−29°C). Occasional operating temperatures colder than −20°F (−29°C) are acceptable when due to lower seasonal atmospheric temperature."

Is there any provision for wave Impact testing as per code provision(s). Kindly advise.

--

Regards,

Vishnu

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Re: [MW:27915] Permissible dent on pipe

Dent (buckling and or upheavel ) in piping shall be <2 %. In addition NDT shall be carried at dent location has to be as per requirement to ensure fitness of piping or RBI (Risk based inspection)

Chandrakant Mohikar

Ex. PDO / Co. Site Representative (Project QA)

8446079514

On Mon, 28 May 2018, 4:10 p.m. Anoj Singh, <nayaktp@gmail.com> wrote:

What is permissible dent on 10" sch. Std. Carbon steel seamless pipe?

Regards

Anoj singh

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Re: [MW:27915] Impact requirement for pressure vessel plates

MIT exempt per UCS-66 Curve 'D'

On Sat, May 26, 2018 at 11:15 PM, vishnudas balachandran <vishnudasb@gmail.com> wrote:

Dear All,

Vessel Data,

MDMT = ( - 30 Deg C),

Plate thickness = 12mm,

Dished end = 12/14,

Material = SA 516 Gr.70 N.+ HIC

Design Code - ASME Sec VIII DIV 1.

Is Impact testing required ?

As per UG-20 (f) (3) ,

"Design temperature is no warmer than 650°F (345°C) nor colder than −20°F (−29°C). Occasional operating temperatures colder than −20°F (−29°C) are acceptable when due to lower seasonal atmospheric temperature."

Is there any provision for wave Impact testing as per code provision(s). Kindly advise.

--

Regards,

Vishnu

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Re: [MW:27914] Permissible dent on pipe

Dear Anoj,

You will not find the straight answer for this question.

First you have to visually check the size (depth, length, width), sharpness and if the shape of the pipe has been changed. Based on these observations you can decide if further investigation has to be done like measurement of thickness reduction, NDT to find if any surface and/or internal defects are developed. If above tests, measurements, shape are acceptable, pipe can be used.

Thanks,
Warm Regards,

Rajnish Dixit
Lead - QA-QC/QMS/Welding/NDT/Inspection
+91 972 4200 357

On Mon, May 28, 2018 at 16:10, Anoj Singh

<nayaktp@gmail.com> wrote:

What is permissible dent on 10" sch. Std. Carbon steel seamless pipe?

Regards

Anoj singh

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[MW:27913] Permissible dent on pipe

What is permissible dent on 10" sch. Std. Carbon steel seamless pipe?

Regards

Anoj singh

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Re: [MW:27912] Dish end heat treatment.

Yes, can accept.

On Mon, May 28, 2018, 8:25 AM chiluka venkatramulu <ramuluchiluka@gmail.com> wrote:

Can you provide me any code reference pl.

On Sun, May 27, 2018 at 8:15 PM, Nithin Joseph <nithindsilva4u@gmail.com> wrote:

Yes

On Sun, May 27, 2018 at 5:07 AM, chiluka venkatramulu <ramuluchiluka@gmail.com> wrote:

Dear All,

Can we do stress releaving of 14mm thick Dish ends after forming at 610 Deg Centigrade? One of our nedor did so. Can we accept it. Material is SA 516 Gr 70.

Regards,

Venkatramulu

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Regards,
Dsilva

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Re: [MW:27911] Dish end heat treatment.

Can you provide me any code reference pl.

On Sun, May 27, 2018 at 8:15 PM, Nithin Joseph <nithindsilva4u@gmail.com> wrote:

Yes

On Sun, May 27, 2018 at 5:07 AM, chiluka venkatramulu <ramuluchiluka@gmail.com> wrote:

Dear All,

Can we do stress releaving of 14mm thick Dish ends after forming at 610 Deg Centigrade? One of our nedor did so. Can we accept it. Material is SA 516 Gr 70.

Regards,

Venkatramulu

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Dsilva

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Re: [MW:27909] Dish end heat treatment.

Yes

On Sun, May 27, 2018 at 5:07 AM, chiluka venkatramulu <ramuluchiluka@gmail.com> wrote:

Dear All,

Can we do stress releaving of 14mm thick Dish ends after forming at 610 Deg Centigrade? One of our nedor did so. Can we accept it. Material is SA 516 Gr 70.

Regards,

Venkatramulu

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Dsilva

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[MW:27909] Qatar Gas Welding inspector interview questions

Dear Experts,

I am looking for Qatar Gas Welding inspector/Material Inspector Final panel interview questions and answers for preparation... If anyone have the notes for that kindly send me..

Please do the needful. Thanks in advance.. 

Thanks and Regards,

Prakash M 

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Re: [MW:27908] Impact requirement for pressure vessel plates

Yes 

Impact test required at _30 °c

A p gupta 

IOCL

BARODA 

Sent from Yahoo Mail on Android

On Sun, 27 May 2018 at 11:03 AM, vishnudas balachandran

<vishnudasb@gmail.com> wrote:

Dear All,

Vessel Data,

MDMT = ( - 30 Deg C),

Plate thickness = 12mm,

Dished end = 12/14,

Material = SA 516 Gr.70 N.+ HIC

Design Code - ASME Sec VIII DIV 1.

Is Impact testing required ?

As per UG-20 (f) (3) ,

"Design temperature is no warmer than 650°F (345°C) nor colder than −20°F (−29°C). Occasional operating temperatures colder than −20°F (−29°C) are acceptable when due to lower seasonal atmospheric temperature."

Is there any provision for wave Impact testing as per code provision(s). Kindly advise.

--

Regards,

Vishnu

*Before printing, think about your ENVIRONMENTAL responsibility!Don't print unless necessary.

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[MW:27907] UT area of concern items

Dear All.

a)Would you clear and explain these two paragraphs:

1.Measurements of beam spread for scan indexing limits shall be taken only when required by a referencing code section. Beam spread angles shall be measured once for a search unit wedge combination in the calculated far field at the beginning of each period of extended use, or every 3 months, whichever is less.(what is scan indexing limits and when is it used and how can be specified and based on which standard?)

2.Alternative methods of distance-amplitude of correction of sensitivity may be used provided the results are as reliable as those obtained by the acceptable method. In addition, the alternative method and its equipment shall meet all the performance requirements of this standard.(which alternative method of sensitivity calibration and in which standard are explained except as AWS D1.1)

b)and why mode conversion is more important and higher probable to happen for Probe 60 degree especially for corner square speciemen?

c) when the mode conversion in practical cases you have experienced mode conversion and get false indications and how find?

Regards.

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[MW:27906] Impact requirement for pressure vessel plates

Dear All,

Vessel Data,

MDMT = ( - 30 Deg C),

Plate thickness = 12mm,

Dished end = 12/14,

Material = SA 516 Gr.70 N.+ HIC

Design Code - ASME Sec VIII DIV 1.

Is Impact testing required ?

As per UG-20 (f) (3) ,

"Design temperature is no warmer than 650°F (345°C) nor colder than −20°F (−29°C). Occasional operating temperatures colder than −20°F (−29°C) are acceptable when due to lower seasonal atmospheric temperature."

Is there any provision for wave Impact testing as per code provision(s). Kindly advise.

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Regards,

Vishnu

*Before printing, think about your ENVIRONMENTAL responsibility!Don't print unless necessary.

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Re: [MW:27905] Dish end heat treatment.

Yes. . 

Sent from Yahoo Mail on Android

On Sun, May 27, 2018 at 8:22 AM, chiluka venkatramulu

<ramuluchiluka@gmail.com> wrote:

Dear All,

Can we do stress releaving of 14mm thick Dish ends after forming at 610 Deg Centigrade? One of our nedor did so. Can we accept it. Material is SA 516 Gr 70.

Regards,

Venkatramulu

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[MW:27904] Dish end heat treatment.

Dear All,

Can we do stress releaving of 14mm thick Dish ends after forming at 610 Deg Centigrade? One of our nedor did so. Can we accept it. Material is SA 516 Gr 70.

Regards,

Venkatramulu

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[MW:27903] WPS for Aluminium welding.

Dear Friends,
I am looking for a WPS of Aluminum Welding.
This is for welding of Aluminium Structures.
This is just for reference to establish a new WPS.
Please send it to my mail.
Thank you very much for your support.
Regards,
T.V.Ramakrishna
tv1774@gmail.com

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Re: [MW:27901] TANK BOTTOM PLATE REPAIR - REG

Dear Experts,

    My query is whether a puncture in the bottom plate can be covered with patch plate. In API 653 it clearly says in the critical zone the minimum thickness shall be 0.1inch for placing the patch plate. But for the bottom plate other than the critical zone it is not clearly stated as of my knowledge. I requesting the team members if anybody carried out such type of repair work please share the details with code reference.

With Regards,
N.Shanmugam

On Sat, May 26, 2018 at 8:28 AM, Paresh Patel <pkpatel1968@gmail.com> wrote:

Yes, can.

Follow API 653 requirments.

On Sat, May 26, 2018, 8:58 AM 'Neilash Kumar' via Materials & Welding <materials-welding@googlegroups.com> wrote:

Hi ,

You need to replace the full bottom plate in order to avoid the further breakdown during service.

Neilashkumar

On Saturday, 26 May, 2018, 5:59:46 AM GMT+3, Shanmugam <nss2410@gmail.com> wrote:

Dear Experts,

                       During sutdown after blasting  tank bottom plates we observed lot of pitting corrosion. Some pitting are went through the entire thickness and some pittings are in the half way of the thickness. 

By following API 653 is it possible to repair with patch plate on the holes formed and went through the entire bottom plate thickness by pitting corrosion. Your kind suggestion is requested.

Tank Construction code: API -650

Bottom plate thickness - 8mm

With Regards,
N.S

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Re: [MW:27901] TANK BOTTOM PLATE REPAIR - REG

Hi,

as you mentioned during shutdown if the tank is urgent to close then we can proceed with patch repair (patch size to be decide based on inspection advise) to avoid long duration consuming such replacement and hydrotest with end user approval. However after some of duration the entire bottom plate along with tank pad to be replaced.

All in based on end user approval.

Best Regards,

Ponraj Sivathanu,

On Sat, May 26, 2018 at 12:31 AM, Shanmugam <nss2410@gmail.com> wrote:

This message is eligible for Automatic Cleanup! (nss2410@gmail.com) Add cleanup rule | More info

Dear Experts,

                       During sutdown after blasting  tank bottom plates we observed lot of pitting corrosion. Some pitting are went through the entire thickness and some pittings are in the half way of the thickness. 

By following API 653 is it possible to repair with patch plate on the holes formed and went through the entire bottom plate thickness by pitting corrosion. Your kind suggestion is requested.

Tank Construction code: API -650

Bottom plate thickness - 8mm

With Regards,
N.S

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