Saturday, January 30, 2021

[MW:31969] Re: SS 405 grains

These are straight Cr Stainless steels for high temperature application.
In boiler , you can use this material.
Pl. send what attachment part you are looking for ?


On Monday, January 25, 2021 at 7:42:58 AM UTC+4 Emad wrote:
Dear all,

what will happen to the grains of a ferritic stainless-steel type AISI 405 used as an attachment of a hanger bar in a boiler, when it is exposed to flame temperatures of the boiler for 4 years of continuous operation? It is understood that the 405 steel will not oxidize in the high-temperature service environment.

Regards,

Emad


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Thursday, January 28, 2021

Re: [MW:31968] tanks

I think it will be SQR Butt weld preparation, there more penetration or some area no penetration without Backing Strip (BS).
NDT Inspection it will be difficult in interpretation if no BS.
API STD 650 spelled out BS required. 
If no BS weld metal will touch the concrete base and prone to early corrosion . if you see other plates it will be weld as lap joint.

Expert can add more points. 

Thank you, 

Regards, 
S.SENTHILKUMAR


On Thursday, 28 January, 2021, 10:53:24 am IST, hi.munu@gmail.com <hi.munu@gmail.com> wrote:


Annalur plate area without backing strip can do welding , what about probleams came , anyone explain ?

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[MW:31967] Fwd: QAP sample for pressure vessel as per PED 5500 - Urgent

Dear All , 

Please anyone can send QAP for a pressure vessel as per design code PED5500 for reference......



With Warm Regards,

S.TAMIZH SELVAN,
Mobile: +91-9597370860 ( India )
With Warm Regards,

S.TAMIZH SELVAN,
Mobile: +91-9597370860 ( India )
          


---------- Forwarded message ---------
From: Tamizh Selvan <tamizh74@gmail.com>
Date: Wed, Jan 27, 2021 at 3:05 PM
Subject: QAP sample for pressure vessel as per PED 5500 - Urgent
To: <materials-welding@googlegroups.com>


Dear All , 
Please anyone can send QAP for a pressure vessel as per design code PED5500 for reference......



With Warm Regards,

S.TAMIZH SELVAN,
Mobile: +91-9597370860 ( India )
          

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[MW:31966] tanks

Annalur plate area without backing strip can do welding , what about probleams came , anyone explain ?

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Wednesday, January 27, 2021

Re: [MW:31965] RE: 31963] Cswip - senior welding inspector soft copy


On Wed, Jan 27, 2021 at 10:15 AM <pgoswami@rogers.com> wrote:

Please go and search in Telegram , you'll find it .

 

Thanks.

From: materials-welding@googlegroups.com <materials-welding@googlegroups.com> On Behalf Of SEN SEN
Sent: January 26, 2021 10:51 AM
To: MATERIAL <materials-welding@googlegroups.com>
Subject: [MW:31963] Cswip - senior welding inspector soft copy

 

Dear all,

      Pls anyone send Cswip - senior welding inspector soft copy,

Thanks and best regards,

SENTHIL P

 

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Virus-free. www.avg.com

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[MW:31964] RE: 31963] Cswip - senior welding inspector soft copy

Please go and search in Telegram , you'll find it .

 

Thanks.

From: materials-welding@googlegroups.com <materials-welding@googlegroups.com> On Behalf Of SEN SEN
Sent: January 26, 2021 10:51 AM
To: MATERIAL <materials-welding@googlegroups.com>
Subject: [MW:31963] Cswip - senior welding inspector soft copy

 

Dear all,

      Pls anyone send Cswip - senior welding inspector soft copy,

Thanks and best regards,

SENTHIL P

 

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Tuesday, January 26, 2021

[MW:31963] Cswip - senior welding inspector soft copy

Dear all,
      Pls anyone send Cswip - senior welding inspector  soft copy,
Thanks and best regards,
SENTHIL P

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Monday, January 25, 2021

Re: [MW:31962] SS 405 grains

Is welding involved ?
If yes , what welding procedure ?
Pl. let us know 

What thickness are involved ?

On Mon, Jan 25, 2021 at 7:42 AM EmaD FaRaHanI <emad.farahani@gmail.com> wrote:
Dear all,

what will happen to the grains of a ferritic stainless-steel type AISI 405 used as an attachment of a hanger bar in a boiler, when it is exposed to flame temperatures of the boiler for 4 years of continuous operation? It is understood that the 405 steel will not oxidize in the high-temperature service environment.

Regards,

Emad


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Re: [MW:31960] SS 405 grains

may get :-
 *  grain growth which lead to low toughness 
 *  brittle phases as Sigma or Chi which lead to loos of toughness or even cracking 

Best Regards ,
ENG. Ahmed Osman


On Monday, January 25, 2021, 06:42:57 a.m. GMT+3, EmaD FaRaHanI <emad.farahani@gmail.com> wrote:


Dear all,

what will happen to the grains of a ferritic stainless-steel type AISI 405 used as an attachment of a hanger bar in a boiler, when it is exposed to flame temperatures of the boiler for 4 years of continuous operation? It is understood that the 405 steel will not oxidize in the high-temperature service environment.

Regards,

Emad


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Re: [MW:31960] Tolerance for straightness of the pipeline

No such drawing recommendation for straightness, the main need of LDO and HFO line are to be seamless pipes as these fuels having high sulphur content the sulphur ingress the crevice of the seam and over a period of time may cause leakage which is a high potential fire hazard during operation ( as you have mentioned IS 2062 please confirm whether it is seamless).  

In recent days Indian power plants avoid use of HFO as the fuel - unburnt, lack of ignition, lack of purity and handling issues. And if the system is not put into continuous operation (even with recirculation and steam tracing) the whole system will get choked over a period of time and restoration would be mere impossible. 

   Regards,

K.Pandiarajan.

On Sun, Jan 24, 2021 at 6:58 PM MUKESH RAWAL <mukeshrawalbe@gmail.com> wrote:

Dear Experts,

I want to approve an FQP for Pipe erection, and in that FQP I want to mention the tolerance limit for the straightness of the pipeline.

I had also referred to relevant specifications and different codes including ASME B31.3 process piping but acceptance criteria is not mentioned anywhere.

Pipe line belongs to Ash slurry, HFO/LDO, and service water pipe used in power plants and the material is IS 2062.
Here I would like to clear that query raised to know the acceptance tolerance as per code in straightness of pipe line at final inspection.

Please suggest on which basis I can mention the tolerance limit for straightness of the pipeline in FQP.

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Re: [MW:31958] Overcoming distortion in SS 304L pressure vessel

Use Double operator GTAW  ie two welders welding from either side simultaneously in 3G, pulling same weld puddle with Square butt joint,  5 mm gap.
Welders to practice first in 1 M long test plate. Use 2 or -2.4dia filler. 80/120 amps. 
Provide stiffnars to act gap closing . 1stStriking arc welder to add filler in joint gap second welder to operate at lower current level and add filler as and when required moving arc behind 3-4 mm from first welder. His arc also provide argon  shielding to weld  

On Thu, Jan 21, 2021, 08:43 Shahil Saini <sainishahil98@gmail.com> wrote:
Hello everyone, 

How to overcome the distortion in pressure vessel of material SS 304L?, having thickness 8mm of two dish-end and shell having thickness of 6 mm, I am attaching photographs of vessel for your reference,



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Sunday, January 24, 2021

[MW:31959] SS 405 grains

Dear all,

what will happen to the grains of a ferritic stainless-steel type AISI 405 used as an attachment of a hanger bar in a boiler, when it is exposed to flame temperatures of the boiler for 4 years of continuous operation? It is understood that the 405 steel will not oxidize in the high-temperature service environment.

Regards,

Emad


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[MW:31957] Re: SS 410S-405 Forging Material Standard for use in ASME BPVC

Dear all,

what will happen to the grains of a ferritic stainless-steel type AISI 405 used as an attachment of a hanger bar in a boiler, when it is exposed to flame temperatures of the boiler for 4 years of continuous operation? It is understood that the 405 steel will not oxidize in the high temperature service environment.

Regards,

Emad



On Saturday, April 18, 2020 at 7:40:19 AM UTC-4 Materials & Welding wrote:

SS410S Forging.gif

Jpeg file  attached as it is not properly transmitted in the previous post


On Saturday, 18 April 2020 17:07:04 UTC+5:30, Materials & Welding wrote:
Query to use forge component of SS 410S (UNS S41008) OR 405 (UNS S40500) – Ferritic SS (ASME Sec IX P.No.7)

1.  As per ASME, there is no forging material standard for SS 410S (UNS S41008) OR 405 (UNS S40500). Please look at below summary.


However, as per UHA-11 GENERAL
        (a) All materials subject to stress due to pressure shall conform to one of the specifications given in Section II, and shall be limited to those listed in Table UHA-23         except as otherwise provided in         (b) and UG-4.

        (b) The specifications listed in Section II, Part D, Subpart 1, Tables 1A and 3 do not use         a uniform system for designating the Grade number of materials that have approximately the same range of         chemical composition. To provide a uniform system of reference, these tables include a column of UNS (Unified Numbering System) numbers assigned to identify the various alloy compositions.

When these particular UNS numbers were assigned, the familiar AISI type numbers for stainless steels were incorporated into the designation. These type numbers are used in the rules of Part UHA whenever reference is made to materials of approximately the same chemical composition that are furnished under more than one approved specification or in more than one product form.

Query 1: By applying above can we use SA-182 F6a Class 2 (UNS S41000) – Martensitic SS-ASME Sec IX P. No. 6 with following consideration in order to get SS 410S/405 grade of forging material?

·        The chemical and mechanical properties of the SA-182 F6a Class 2 (UNS S41000) material will comply to SA-240 Gr. 410S. The heat treatment and requirement of de-oxidation shall also be as per SA-240 Gr. 410S.
·        SA-182 F6a will be used for the mechanical testing and SA-240 Grade 410S will be considered for final test results acceptance.
·        SA-182/SA-788 will be followed basically for the manufacturing process, tolerance and other similar requirement.

        Query 2: ASTM A 473 one of the Forging material standard where SS 410S (UNS S41008) and 405 (UNS S40500) are included.
Can we use above forging product for ASME Sec IV Div I application?

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[MW:31955] Tolerance for straightness of the pipeline

Dear Experts,

I want to approve an FQP for Pipe erection, and in that FQP I want to mention the tolerance limit for the straightness of the pipeline.

I had also referred to relevant specifications and different codes including ASME B31.3 process piping but acceptance criteria is not mentioned anywhere.

Pipe line belongs to Ash slurry, HFO/LDO, and service water pipe used in power plants and the material is IS 2062.
Here I would like to clear that query raised to know the acceptance tolerance as per code in straightness of pipe line at final inspection.

Please suggest on which basis I can mention the tolerance limit for straightness of the pipeline in FQP.

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Saturday, January 23, 2021

Re: [MW:31953] API 650

pl. check latest edition (paragraph numbers may vary)

On Sat, 23 Jan 2021 at 10:18, STEPHEN QM <qc42492@gmail.com> wrote:
Isn't it 6.1.5 sir?

On Fri, Jan 22, 2021, 2:21 PM Raghuram Bathula <raghurambathula@gmail.com> wrote:
yes, read para 8.1.5

On Fri, 22 Jan 2021 at 14:17, chitko khaing <chitkokhaing2009@gmail.com> wrote:
Dear all
 I am chit ko from Myanmar. i want to know " API 650 RT acceptance Criteria" refer to ASME VIII Division 1?

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Re: [MW:31953] API 650

Isn't it 6.1.5 sir?

On Fri, Jan 22, 2021, 2:21 PM Raghuram Bathula <raghurambathula@gmail.com> wrote:
yes, read para 8.1.5

On Fri, 22 Jan 2021 at 14:17, chitko khaing <chitkokhaing2009@gmail.com> wrote:
Dear all
 I am chit ko from Myanmar. i want to know " API 650 RT acceptance Criteria" refer to ASME VIII Division 1?

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Friday, January 22, 2021

[MW:31952] Fwd: Artistic Soul of Welding Digital Collection 2021



---------- Forwarded message ---------
From: The Indian Institute Of Welding <hq@iiwindia.com>
Date: Fri, 22 Jan 2021 at 15:21
Subject: Artistic Soul of Welding Digital Collection 2021
To: <raghurambathula@gmail.com>


THE INDIAN INSTITUTE OF WELDING


Dear Professionals,

The International Institute of Welding (IIW) will hold the 2021 IIW Welded Art Photographic Exhibition in 'virtual' mode during the on-line 2021 IIW Annual Assembly from 11th to 17th July 2021.
 
700-800 welding professionals, engineers and scientists are expected to attend. Participants will be able to enter an online room where all the welded art photographs will be displayed. Participants will also be able to take away a  "2021 Artistic Soul of Welding Digital Collection", containing all the welded art photographic exhibits plus the write-ups on the artists and exhibits including contact details of each artist. The digital collection will also be promoted around the world in a number of ways.
 
IIW-India is promoting the 2021 exhibition and if you wish to participate in any of the categories of the exhibition shown below, or know somebody who would be interested, you can download the detailed invitation and the "2020 Digital Collection". Please send the entry latest by 12th of February 2021.

 
CATEGORIES OF EXHIBITS IN THE EXHIBITION
The "2021 Digital Collection" will include an expanded number of exhibits in each of the four categories shown in the "2020 Digital Collection"  plus a special educational institution category all as mentioned below:

1. Welded Art Exhibits: Typically what is shown on Pages 5 to 55 but expanded from 25 Artists to 35 artists.

2. Emerging Joining Technologies:  Two examples are shown on pages 57 to 63 from Autodesk in the United Kingdom, ("Ollie the Octopus") and University of Wollongong and RMIT University in Melbourne, Australia (Spatial Lattice).We welcome researchers, universities and companies around the world using emerging joining technologies to create welded art exhibits for submission.

3. Young Artists:  We would like to include up to 10 exhibits from children 15 years and under who have taken up welded art as a hobby and who are forming the next generation of up-and-coming young artists. Thomas Huisman, an example of 'the face of welding for the next generation' from Brisbane, Australia, is featured on pages 64/66 with his exhibit "Heavy Metal".

4. Photography:- Prof Milan Maronek from Slovakia is featured on pages 67/69 where through his 'Art of Welding' series, he brings the viewer closer to the world of technology and welding from the perspective of fine art photography. His exhibit "The Memory of Monet" is a fine example of this. Materials scientists and engineers amongst others would find this an interesting activity to participate in.

5. Instructors and students:  Around India, there could be  universities, technical colleges, art colleges and high schools where both instructors and students may perform welded art. IIW would like to include at least 10 exhibits from such educational institutions around the world.
The final number of exhibits to be included in each category is flexible and significantly increased numbers of suitable exhibits can be accommodated.
If you are aware of other people in your networks at companies, universities, research groups, colleges, armatures etc. who may be producing welded artwork in any of the categories mentioned earlier, you may send the details to the undersigned at rituraj.bose@iiwindia.com for further necessary action.

The link for the "Invitation Letter" & the "Welded Art Photography Booklet" are given below for ready reference.. 

Click on the image below for Invitation:


Click on the image below for Booklet:

Regards,
 
Rituraj Bose
Hony. Secretary General
The Indian Institute of Welding
Mob: +91 9830476249 / 7003789295
Website Website
Email Email

The Indian Institute of Welding

Plot No. 38, Geetanjali Park, 200, Kalikapur Main Road, PO: Mukundapur, Kolkata - 700099, INDIA
 Visit us at - www.iiwindia.com
Mail us at - iiw@iiwindia.com






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Re: [MW:31951] API 650

yes, read para 8.1.5

On Fri, 22 Jan 2021 at 14:17, chitko khaing <chitkokhaing2009@gmail.com> wrote:
Dear all
 I am chit ko from Myanmar. i want to know " API 650 RT acceptance Criteria" refer to ASME VIII Division 1?

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[MW:31950] API 650

Dear all
 I am chit ko from Myanmar. i want to know " API 650 RT acceptance Criteria" refer to ASME VIII Division 1?

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Re: [MW:31948] Simulations PWHT

UCS 85

On Thu, Jan 21, 2021, 1:53 PM sajeed zaheer <sajeed7674@gmail.com> wrote:
Hello Everyone,

As per Sec 8 code there is no were written about the simulation PWHT, but in the ARAMCO specification I'm  encountering  with  this simulation PWHT,  Two PWHT cycle to account for future repair.Please clarify my doubt about the simulation PWHT.

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Thursday, January 21, 2021

Re: [MW:31948] Simulations PWHT

IBR

On Thu, Jan 21, 2021, 3:24 PM Vishwas Keskar <vvkeskar123@gmail.com> wrote:
Construction Codes ( ASME SEC VIII DIV I , ASME SEC I )are silent about simulation PWHT.
Client specifications( like Aramco, PDO , Shell DEPs) are specifying these simulation PWHT requirements.
We have to anticipate possible   repairs after PWHT .
Accordingly PQR shall be established .


On Thu, Jan 21, 2021 at 12:23 PM sajeed zaheer <sajeed7674@gmail.com> wrote:
Hello Everyone,

As per Sec 8 code there is no were written about the simulation PWHT, but in the ARAMCO specification I'm  encountering  with  this simulation PWHT,  Two PWHT cycle to account for future repair.Please clarify my doubt about the simulation PWHT.

Virus-free. www.avast.com

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Re: [MW:31947] Simulations PWHT

Construction Codes ( ASME SEC VIII DIV I , ASME SEC I )are silent about simulation PWHT.
Client specifications( like Aramco, PDO , Shell DEPs) are specifying these simulation PWHT requirements.
We have to anticipate possible   repairs after PWHT .
Accordingly PQR shall be established .


On Thu, Jan 21, 2021 at 12:23 PM sajeed zaheer <sajeed7674@gmail.com> wrote:
Hello Everyone,

As per Sec 8 code there is no were written about the simulation PWHT, but in the ARAMCO specification I'm  encountering  with  this simulation PWHT,  Two PWHT cycle to account for future repair.Please clarify my doubt about the simulation PWHT.

Virus-free. www.avast.com

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[MW:31946] Simulations PWHT

Hello Everyone,

As per Sec 8 code there is no were written about the simulation PWHT, but in the ARAMCO specification I'm  encountering  with  this simulation PWHT,  Two PWHT cycle to account for future repair.Please clarify my doubt about the simulation PWHT.

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Re: [MW:31945] Overcoming distortion in SS 304L pressure vessel

Hi
You can also use water jet opposite side during welding to control distortion in SS304 L and proper stiffening due to lesser thickness.

Regards
Ajay Gupta




On Thu, Jan 21, 2021 at 8:43 AM Shahil Saini <sainishahil98@gmail.com> wrote:
Hello everyone, 

How to overcome the distortion in pressure vessel of material SS 304L?, having thickness 8mm of two dish-end and shell having thickness of 6 mm, I am attaching photographs of vessel for your reference,



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[MW:34820] RE: 34813] Clarification in Rate of heating and cooling.

Hello,   Please see the response below.   Regards.   P. Goswami, P. Eng, IWE.   From: materials-welding@googlegroups.com <materials-weld...