Re: [MW:32589] SA 516 GR 70- AVOIDANCE OF PWHT - 40 mm thickness

Refer attached interpretations

On Sun, 31 Oct 2021, 10:30 Vishwas Keskar, <vvkeskar123@gmail.com> wrote:

Thanks for Sir.

Pl help for ref for Code or Code case.

On Fri, 29 Oct 2021, 21:40 pgoswami, <pgoswami@rogers.com> wrote:

Sec VIII,Div1:-

40 mm thickness calls for PWHT irrespective of service,  lethal or Non- Lethal. 

Would like to see in  DIV1,which code clause or code case,  allows application of buttering on C.S, PWHT of individual sections, welding of the closing seam by austenitic filler metal with no PWHT.

Thanks. 

P.Goswami. 

Sent from my Bell Samsung device over Canada's largest network.

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Re: [MW:32588] SA 516 GR 70- AVOIDANCE OF PWHT - 40 mm thickness

Dear Prasad 

Thanks for technical support.

Pl share where this was deployed.

Our vessel is ASME SEX VIII DIV 1 vessel

U stamping and TPI is involved.

Any Code back up , Code case  will be further helpful .

On Sun, 31 Oct 2021, 10:30 Prasad Ghanekar, <prsgne@gmail.com> wrote:

Sir,

1. In this case buttering is carried out prior to PWHT

2. PWHT is due to thickness of P1 material

3. No welding involved with P1 material in closing joint

4. PWHT is not mandatory for P8 welds.

That's my analysis and understanding.

We have implemented such practice in past due to some construction constraints.

Regards,

Prasad G.

On Fri, 29 Oct 2021, 21:40 pgoswami, <pgoswami@rogers.com> wrote:

Sec VIII,Div1:-

40 mm thickness calls for PWHT irrespective of service,  lethal or Non- Lethal. 

Would like to see in  DIV1,which code clause or code case,  allows application of buttering on C.S, PWHT of individual sections, welding of the closing seam by austenitic filler metal with no PWHT.

Thanks. 

P.Goswami. 

Sent from my Bell Samsung device over Canada's largest network.

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Re: [MW:32580] SA 516 GR 70- AVOIDANCE OF PWHT - 40 mm thickness

Thanks for Sir.

Pl help for ref for Code or Code case.

On Fri, 29 Oct 2021, 21:40 pgoswami, <pgoswami@rogers.com> wrote:

Sec VIII,Div1:-

40 mm thickness calls for PWHT irrespective of service,  lethal or Non- Lethal. 

Would like to see in  DIV1,which code clause or code case,  allows application of buttering on C.S, PWHT of individual sections, welding of the closing seam by austenitic filler metal with no PWHT.

Thanks. 

P.Goswami. 

Sent from my Bell Samsung device over Canada's largest network.

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Re: [MW:32579] SA 516 GR 70- AVOIDANCE OF PWHT - 40 mm thickness

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From: Prasad Ghanekar <prsgne@gmail.com>
Date: Fri, 29 Oct 2021 21:30:40 +0530
Message-ID: <CAEi5r3a97dkQ4+qi3pbePCO7bxM_jB_P9K+r5-j0nHg9UJsDsg@mail.gmail.com>
Subject: Re: [MW:32578] SA 516 GR 70- AVOIDANCE OF PWHT - 40 mm thickness
To: materials-welding@googlegroups.com
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In my opinion As per ASME code, acceptable, no PWHT required for given
condition if welded with austenitic stainless Steel consumables.
However check service condition for dissimilar metal exposure to service
fluid and environment.

Regards,
Prasad G.

On Fri, 29 Oct 2021, 18:03 , <pgoswami@rogers.com> wrote:

> Hi Vishwas,
>
> Your query does not indicate the thickness , which is most critical aspec=
t
> of choosing the PWHT cycle.
>
> Irrespective of that, it=E2=80=99s not advisable to leave one joint, *esp=
ecially
> the closing joint* without PWHT and commission the vessel in service. You
> may better perform a LOCAL PWHT at the site.
>
> Also using dissimilar consumable is encouraged , only if dissimilar metal
> welding is involved. In this case use of dissimilar welding consumable is
> not desired, that may add undue thermal stress in service on the joint
> welded.
>
>
>
> Thanks.
>
>
>
> Pradip Goswami.P.Eng, IWE.
>
> Cell/Whasapp:1-905-9793232
>
>
>
> *From:* james gerald <gerry_tup@yahoo.com>
> *Sent:* October 29, 2021 6:46 AM
> *To:* materials-welding@googlegroups.com
> *Subject:* Re: [MW:32577] SA 516 GR 70- AVOIDANCE OF PWHT - 40 mm
> thickness
>
>
>
> Please experts to share on Designer's view with respect to different
> lateral expansion though Design temperature is +250degC
>
>
>
> *Thanks & Regards*
>
> *J.Gerald Jayakumar*
>
>
>
>
>
>
>
> On Friday, 29 October, 2021, 11:53:02 am GMT+4, Vishwas Keskar Welding
> Manager WELDING <vvkeskar123@gmail.com> wrote:
>
>
>
>
>
> The vessel details are
>
> MOC - SA 516 GR 70
>
> DIAMETER- 4020mm
>
> LENGTH - 37 MTR
>
> MDMT =3D - 50 Deg C to + 250 Deg C
>
> SERVICE - Non lethal /No Hydrogen Service
>
>
>
> We are proposing Vessel length build up as per FURNACE LENGTH CAPACITY(24
> m maximum) and one joint WITHOUT PWHT ( JOINING PWHTed sections earlier =
at
> site )
>
> Proposal -
>
> 1.MOC - SA 516 GR 70
>
> 2.BUTTERING - ENiCrFe2 on 24 m section end and other at 13 m section end)
>
> 3,PWHT (section PWHT - One of 24 length and other 13 m)
> of - 620 Deg C - 125 MINUTES
>
> 4.Bevel preparation
>
> 5.NDT - DPT
>
> Welding at site ( 24 m section with 13 m section) - ENiCrFe2 OR E309
>
> 6.NDT - DPT AND UT
>
>
>
> Expert opinion please and share experience if any
>
>
>
> Vishwas
>
>
>
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<div dir=3D"auto">In my opinion As per ASME code, acceptable, no PWHT requi=
red for given condition if welded with austenitic stainless Steel consumabl=
es.<div dir=3D"auto">However check service condition for dissimilar metal e=
xposure to service fluid and environment.</div><div dir=3D"auto"><br></div>=
<div dir=3D"auto">Regards,</div><div dir=3D"auto">Prasad G.</div></div><br>=
<div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Fri, 29=
Oct 2021, 18:03 , &lt;<a href=3D"mailto:pgoswami@rogers.com">pgoswami@roge=
rs.com</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"m=
argin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div lang=3D"=
EN-US" link=3D"blue" vlink=3D"purple" style=3D"word-wrap:break-word"><div c=
lass=3D"m_-9143628470932963806WordSection1"><p class=3D"MsoNormal"><span st=
yle=3D"font-size:12.0pt">Hi Vishwas,<u></u><u></u></span></p><p class=3D"Ms=
oNormal"><span style=3D"font-size:12.0pt">Your query does not indicate the =
thickness , which is most critical aspect of choosing the PWHT cycle. <u></=
u><u></u></span></p><p class=3D"MsoNormal"><span style=3D"font-size:12.0pt"=
>Irrespective of that, it=E2=80=99s not advisable to leave one joint, <u>es=
pecially the closing joint</u> without PWHT and commission the vessel in se=
rvice. You may better perform a LOCAL PWHT at the site. <u></u><u></u></spa=
n></p><p class=3D"MsoNormal"><span style=3D"font-size:12.0pt">Also using di=
ssimilar consumable is encouraged , only if dissimilar metal welding is inv=
olved. In this case use of dissimilar welding consumable is not desired, th=
at may add undue thermal stress in service on the joint welded. <u></u><u><=
/u></span></p><p class=3D"MsoNormal"><span style=3D"font-size:12.0pt"><u></=
u>=C2=A0<u></u></span></p><p class=3D"MsoNormal"><span style=3D"font-size:1=
2.0pt">Thanks.<u></u><u></u></span></p><p class=3D"MsoNormal"><span style=
=3D"font-size:12.0pt"><u></u>=C2=A0<u></u></span></p><div><p class=3D"MsoNo=
rmal"><span lang=3D"EN-CA" style=3D"font-size:10.0pt;font-family:&quot;Taho=
ma&quot;,sans-serif">Pradip Goswami.P.Eng, IWE.<u></u><u></u></span></p><p =
class=3D"MsoNormal"><span lang=3D"EN-CA" style=3D"font-size:10.0pt;font-fam=
ily:&quot;Tahoma&quot;,sans-serif">Cell/Whasapp:1-905-9793232</span><span s=
tyle=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif"><u></u>=
<u></u></span></p></div><p class=3D"MsoNormal"><span style=3D"font-size:12.=
0pt"><u></u>=C2=A0<u></u></span></p><div><div style=3D"border:none;border-t=
op:solid #e1e1e1 1.0pt;padding:3.0pt 0cm 0cm 0cm"><p class=3D"MsoNormal"><b=
>From:</b> james gerald &lt;<a href=3D"mailto:gerry_tup@yahoo.com" target=
=3D"_blank" rel=3D"noreferrer">gerry_tup@yahoo.com</a>&gt; <br><b>Sent:</b>=
October 29, 2021 6:46 AM<br><b>To:</b> <a href=3D"mailto:materials-welding=
@googlegroups.com" target=3D"_blank" rel=3D"noreferrer">materials-welding@g=
ooglegroups.com</a><br><b>Subject:</b> Re: [MW:32577] SA 516 GR 70- AVOIDAN=
CE OF PWHT - 40 mm thickness<u></u><u></u></p></div></div><p class=3D"MsoNo=
rmal"><u></u>=C2=A0<u></u></p><div><div><div><p class=3D"MsoNormal"><span s=
tyle=3D"font-size:12.0pt;font-family:&quot;Helvetica&quot;,sans-serif">Plea=
se experts to share on Designer&#39;s view with respect to different latera=
l expansion though Design temperature is +250degC<u></u><u></u></span></p><=
/div><div><p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-famil=
y:&quot;Helvetica&quot;,sans-serif"><u></u>=C2=A0<u></u></span></p></div><d=
iv><div><p><em><span style=3D"font-size:12.0pt;font-family:&quot;Helvetica&=
quot;,sans-serif;color:#652191">Thanks &amp; Regards</span></em><span style=
=3D"font-size:12.0pt;font-family:&quot;Helvetica&quot;,sans-serif"><u></u><=
u></u></span></p><p><strong><span style=3D"font-size:12.0pt;font-family:&qu=
ot;Helvetica&quot;,sans-serif">J.Gerald Jayakumar</span></strong><span styl=
e=3D"font-size:12.0pt;font-family:&quot;Helvetica&quot;,sans-serif"><u></u>=
<u></u></span></p><p><span style=3D"font-size:12.0pt;font-family:&quot;Helv=
etica&quot;,sans-serif"><u></u>=C2=A0<u></u></span></p></div></div></div><d=
iv><p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot=
;Helvetica&quot;,sans-serif"><u></u>=C2=A0<u></u></span></p></div><div><p c=
lass=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:&quot;Helvet=
ica&quot;,sans-serif"><u></u>=C2=A0<u></u></span></p></div></div><div id=3D=
"m_-9143628470932963806ydp6ffa7bc0yahoo_quoted_5925255893"><div><div><p cla=
ss=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;Helvetic=
a&quot;,sans-serif;color:#26282a">On Friday, 29 October, 2021, 11:53:02 am =
GMT+4, Vishwas Keskar Welding Manager WELDING &lt;<a href=3D"mailto:vvkeska=
r123@gmail.com" target=3D"_blank" rel=3D"noreferrer">vvkeskar123@gmail.com<=
/a>&gt; wrote: <u></u><u></u></span></p></div><div><p class=3D"MsoNormal"><=
span style=3D"font-size:10.0pt;font-family:&quot;Helvetica&quot;,sans-serif=
;color:#26282a"><u></u>=C2=A0<u></u></span></p></div><div><p class=3D"MsoNo=
rmal"><span style=3D"font-size:10.0pt;font-family:&quot;Helvetica&quot;,san=
s-serif;color:#26282a"><u></u>=C2=A0<u></u></span></p></div><div><div id=3D=
"m_-9143628470932963806ydp6ffa7bc0yiv3628008508"><p class=3D"MsoNormal"><sp=
an style=3D"font-size:10.0pt;font-family:&quot;Helvetica&quot;,sans-serif;c=
olor:#26282a">The vessel details are=C2=A0<u></u><u></u></span></p><div><p =
class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;Helve=
tica&quot;,sans-serif;color:#26282a">MOC - SA 516 GR 70=C2=A0<u></u><u></u>=
</span></p></div><div><p class=3D"MsoNormal"><span style=3D"font-size:10.0p=
t;font-family:&quot;Helvetica&quot;,sans-serif;color:#26282a">DIAMETER- 402=
0mm<u></u><u></u></span></p></div><div><p class=3D"MsoNormal"><span style=
=3D"font-size:10.0pt;font-family:&quot;Helvetica&quot;,sans-serif;color:#26=
282a">LENGTH - 37 MTR<u></u><u></u></span></p></div><div><p class=3D"MsoNor=
mal"><span style=3D"font-size:10.0pt;font-family:&quot;Helvetica&quot;,sans=
-serif;color:#26282a">MDMT =3D - 50 Deg C to=C2=A0 + 250 Deg C=C2=A0<u></u>=
<u></u></span></p></div><div><p class=3D"MsoNormal"><span style=3D"font-siz=
e:10.0pt;font-family:&quot;Helvetica&quot;,sans-serif;color:#26282a">SERVIC=
E - Non lethal /No Hydrogen Service=C2=A0<u></u><u></u></span></p></div><di=
v><p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;=
Helvetica&quot;,sans-serif;color:#26282a"><u></u>=C2=A0<u></u></span></p></=
div><div><p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family=
:&quot;Helvetica&quot;,sans-serif;color:#26282a">We are proposing Vessel le=
ngth build up as per FURNACE LENGTH CAPACITY(24 m maximum) and one joint WI=
THOUT PWHT=C2=A0 ( JOINING PWHTed sections earlier at site )<u></u><u></u><=
/span></p></div><div><p class=3D"MsoNormal"><span style=3D"font-size:10.0pt=
;font-family:&quot;Helvetica&quot;,sans-serif;color:#26282a">Proposal -=C2=
=A0<u></u><u></u></span></p></div><div><p class=3D"MsoNormal"><span style=
=3D"font-size:10.0pt;font-family:&quot;Helvetica&quot;,sans-serif;color:#26=
282a">1.MOC - SA 516 GR 70=C2=A0<u></u><u></u></span></p></div><div><p clas=
s=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;Helvetica=
&quot;,sans-serif;color:#26282a">2.BUTTERING - ENiCrFe2 on 24 m section end=
and other at 13 m section end)<u></u><u></u></span></p></div><div><p class=
=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;Helvetica&=
quot;,sans-serif;color:#26282a">3,PWHT (section PWHT - One of 24=C2=A0 leng=
th and other 13 m)<br>=C2=A0of=C2=A0 - 620 Deg C - 125 MINUTES=C2=A0<u></u>=
<u></u></span></p></div><div><p class=3D"MsoNormal"><span style=3D"font-siz=
e:10.0pt;font-family:&quot;Helvetica&quot;,sans-serif;color:#26282a">4.Beve=
l preparation=C2=A0<u></u><u></u></span></p></div><div><p class=3D"MsoNorma=
l"><span style=3D"font-size:10.0pt;font-family:&quot;Helvetica&quot;,sans-s=
erif;color:#26282a">5.NDT - DPT=C2=A0<u></u><u></u></span></p></div><div><p=
class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;Helv=
etica&quot;,sans-serif;color:#26282a">Welding at site ( 24 m section with 1=
3 m section) - ENiCrFe2 OR E309=C2=A0<u></u><u></u></span></p></div><div><p=
class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;Helv=
etica&quot;,sans-serif;color:#26282a">6.NDT - DPT AND UT<u></u><u></u></spa=
n></p></div><div><p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;fon=
t-family:&quot;Helvetica&quot;,sans-serif;color:#26282a"><u></u>=C2=A0<u></=
u></span></p></div><div><p class=3D"MsoNormal"><span style=3D"font-size:10.=
0pt;font-family:&quot;Helvetica&quot;,sans-serif;color:#26282a">Expert opin=
ion please=C2=A0 and share experience if any=C2=A0<u></u><u></u></span></p>=
</div><div><p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-fami=
ly:&quot;Helvetica&quot;,sans-serif;color:#26282a"><u></u>=C2=A0<u></u></sp=
an></p></div><div><p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;fo=
nt-family:&quot;Helvetica&quot;,sans-serif;color:#26282a">Vishwas=C2=A0<u><=
/u><u></u></span></p></div><div><p class=3D"MsoNormal"><span style=3D"font-=
size:10.0pt;font-family:&quot;Helvetica&quot;,sans-serif;color:#26282a"><u>=
</u>=C2=A0<u></u></span></p></div><p class=3D"MsoNormal"><span style=3D"fon=
t-size:10.0pt;font-family:&quot;Helvetica&quot;,sans-serif;color:#26282a">-=
- <br><a href=3D"https://materials-welding.blogspot.com/" target=3D"_blank"=
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--0000000000008428a205cf7fee0a--

Sec VIII,Div1:-

40 mm thickness calls for PWHT irrespective of service,  lethal or Non- Lethal. 

Would like to see in  DIV1,which code clause or code case,  allows application of buttering on C.S, PWHT of individual sections, welding of the closing seam by austenitic filler metal with no PWHT.

Thanks. 

P.Goswami. 

Sent from my Bell Samsung device over Canada's largest network.

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RE: [MW:32580] SA 516 GR 70- AVOIDANCE OF PWHT - 40 mm thickness

Dear Vishwas, 

If you want avoid the PWHT localized and  the impact test, review the engineering specification for this vessel, what is required, the qualified WPS, type of process and electrodes used. 

if you buttering with ENiCrFe2 and finish  with E-309, you are creating a dissimilar weld on the vessel. Does the qualified WPS authorize it? 

Regards, 

Ramon Briceño

www.linkedin.com/in/ramonbriceno-metalengineer

Ramon Briceno - Materials & Corrosion Relator - Engi-Learn | LinkedIn View Ramon Briceno's profile on LinkedIn, the world's largest professional community. Ramon has 7 jobs listed on their profile. See the complete profile on LinkedIn and discover Ramon's connections and jobs at similar companies. www.linkedin.com

Re: [MW:32580] SA 516 GR 70- AVOIDANCE OF PWHT - 40 mm thickness

Since your furnace length is 24meters, you have the option to pWHT the entire vessel as provided in the code below with minimum overlap. First PWHT one end for 24meters and then PWHT the another end by reversing with required overlap

Thanks & Regards

J.Gerald Jayakumar

On Friday, 29 October, 2021, 02:46:22 pm GMT+4, james gerald <gerry_tup@yahoo.com> wrote:

Please experts to share on Designer's view with respect to different lateral expansion though Design temperature is +250degC

Thanks & Regards

J.Gerald Jayakumar

On Friday, 29 October, 2021, 11:53:02 am GMT+4, Vishwas Keskar Welding Manager WELDING <vvkeskar123@gmail.com> wrote:

The vessel details are 

MOC - SA 516 GR 70 

DIAMETER- 4020mm

LENGTH - 37 MTR

MDMT = - 50 Deg C to  + 250 Deg C 

SERVICE - Non lethal /No Hydrogen Service 

We are proposing Vessel length build up as per FURNACE LENGTH CAPACITY(24 m maximum) and one joint WITHOUT PWHT  ( JOINING PWHTed sections earlier at site )

Proposal - 

1.MOC - SA 516 GR 70 

2.BUTTERING - ENiCrFe2 on 24 m section end and other at 13 m section end)

3,PWHT (section PWHT - One of 24  length and other 13 m)
 of  - 620 Deg C - 125 MINUTES 

4.Bevel preparation 

5.NDT - DPT 

Welding at site ( 24 m section with 13 m section) - ENiCrFe2 OR E309 

6.NDT - DPT AND UT

Expert opinion please  and share experience if any 

Vishwas 

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Re: [MW:32580] SA 516 GR 70- AVOIDANCE OF PWHT - 40 mm thickness

Sir ,

its 40 mm thickness shell.

On Fri, 29 Oct 2021, 18:03 , <pgoswami@rogers.com> wrote:

Hi Vishwas,

Your query does not indicate the thickness , which is most critical aspect of choosing the PWHT cycle.

Irrespective of that, it's not advisable to leave one joint, especially the closing joint without PWHT and commission the vessel in service. You may better perform a LOCAL PWHT at the site.

Also using dissimilar consumable is encouraged , only if dissimilar metal welding is involved. In this case use of dissimilar welding consumable is not desired, that may add undue thermal stress in service on the joint welded.

 

Thanks.

 

Pradip Goswami.P.Eng, IWE.

Cell/Whasapp:1-905-9793232

 

From: james gerald <gerry_tup@yahoo.com>
Sent: October 29, 2021 6:46 AM
To: materials-welding@googlegroups.com
Subject: Re: [MW:32577] SA 516 GR 70- AVOIDANCE OF PWHT - 40 mm thickness

 

Please experts to share on Designer's view with respect to different lateral expansion though Design temperature is +250degC

 

Thanks & Regards

J.Gerald Jayakumar

 

 

 

On Friday, 29 October, 2021, 11:53:02 am GMT+4, Vishwas Keskar Welding Manager WELDING <vvkeskar123@gmail.com> wrote:

 

 

The vessel details are 

MOC - SA 516 GR 70 

DIAMETER- 4020mm

LENGTH - 37 MTR

MDMT = - 50 Deg C to  + 250 Deg C 

SERVICE - Non lethal /No Hydrogen Service 

 

We are proposing Vessel length build up as per FURNACE LENGTH CAPACITY(24 m maximum) and one joint WITHOUT PWHT  ( JOINING PWHTed sections earlier at site )

Proposal - 

1.MOC - SA 516 GR 70 

2.BUTTERING - ENiCrFe2 on 24 m section end and other at 13 m section end)

3,PWHT (section PWHT - One of 24  length and other 13 m)
 of  - 620 Deg C - 125 MINUTES 

4.Bevel preparation 

5.NDT - DPT 

Welding at site ( 24 m section with 13 m section) - ENiCrFe2 OR E309 

6.NDT - DPT AND UT

 

Expert opinion please  and share experience if any 

 

Vishwas 

 

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RE: [MW:32578] SA 516 GR 70- AVOIDANCE OF PWHT - 40 mm thickness

Hi Vishwas,

Your query does not indicate the thickness , which is most critical aspect of choosing the PWHT cycle.

Irrespective of that, it's not advisable to leave one joint, especially the closing joint without PWHT and commission the vessel in service. You may better perform a LOCAL PWHT at the site.

Also using dissimilar consumable is encouraged , only if dissimilar metal welding is involved. In this case use of dissimilar welding consumable is not desired, that may add undue thermal stress in service on the joint welded.

 

Thanks.

 

Pradip Goswami.P.Eng, IWE.

Cell/Whasapp:1-905-9793232

 

From: james gerald <gerry_tup@yahoo.com>
Sent: October 29, 2021 6:46 AM
To: materials-welding@googlegroups.com
Subject: Re: [MW:32577] SA 516 GR 70- AVOIDANCE OF PWHT - 40 mm thickness

 

Please experts to share on Designer's view with respect to different lateral expansion though Design temperature is +250degC

 

Thanks & Regards

J.Gerald Jayakumar

 

 

 

On Friday, 29 October, 2021, 11:53:02 am GMT+4, Vishwas Keskar Welding Manager WELDING <vvkeskar123@gmail.com> wrote:

 

 

The vessel details are 

MOC - SA 516 GR 70 

DIAMETER- 4020mm

LENGTH - 37 MTR

MDMT = - 50 Deg C to  + 250 Deg C 

SERVICE - Non lethal /No Hydrogen Service 

 

We are proposing Vessel length build up as per FURNACE LENGTH CAPACITY(24 m maximum) and one joint WITHOUT PWHT  ( JOINING PWHTed sections earlier at site )

Proposal - 

1.MOC - SA 516 GR 70 

2.BUTTERING - ENiCrFe2 on 24 m section end and other at 13 m section end)

3,PWHT (section PWHT - One of 24  length and other 13 m)
 of  - 620 Deg C - 125 MINUTES 

4.Bevel preparation 

5.NDT - DPT 

Welding at site ( 24 m section with 13 m section) - ENiCrFe2 OR E309 

6.NDT - DPT AND UT

 

Expert opinion please  and share experience if any 

 

Vishwas 

 

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Re: [MW:32580] SA 516 GR 70- AVOIDANCE OF PWHT - 40 mm thickness

Please experts to share on Designer's view with respect to different lateral expansion though Design temperature is +250degC

Thanks & Regards

J.Gerald Jayakumar

On Friday, 29 October, 2021, 11:53:02 am GMT+4, Vishwas Keskar Welding Manager WELDING <vvkeskar123@gmail.com> wrote:

The vessel details are 

MOC - SA 516 GR 70 

DIAMETER- 4020mm

LENGTH - 37 MTR

MDMT = - 50 Deg C to  + 250 Deg C 

SERVICE - Non lethal /No Hydrogen Service 

We are proposing Vessel length build up as per FURNACE LENGTH CAPACITY(24 m maximum) and one joint WITHOUT PWHT  ( JOINING PWHTed sections earlier at site )

Proposal - 

1.MOC - SA 516 GR 70 

2.BUTTERING - ENiCrFe2 on 24 m section end and other at 13 m section end)

3,PWHT (section PWHT - One of 24  length and other 13 m)
 of  - 620 Deg C - 125 MINUTES 

4.Bevel preparation 

5.NDT - DPT 

Welding at site ( 24 m section with 13 m section) - ENiCrFe2 OR E309 

6.NDT - DPT AND UT

Expert opinion please  and share experience if any 

Vishwas 

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Re: [MW:32580] SA 516 GR 70- AVOIDANCE OF PWHT - 40 mm thickness

Normally the use of Nickel electrodes to avoid PWHT was practised in the SR(self reinforced) Nozzles where the vessel is not PWHTed and the Nozzle weld requires PWHT. Experts can throw some light on the C seam and any code restrictions.

Thanks & Regards

J.Gerald Jayakumar

On Friday, 29 October, 2021, 11:53:02 am GMT+4, Vishwas Keskar Welding Manager WELDING <vvkeskar123@gmail.com> wrote:

The vessel details are 

MOC - SA 516 GR 70 

DIAMETER- 4020mm

LENGTH - 37 MTR

MDMT = - 50 Deg C to  + 250 Deg C 

SERVICE - Non lethal /No Hydrogen Service 

We are proposing Vessel length build up as per FURNACE LENGTH CAPACITY(24 m maximum) and one joint WITHOUT PWHT  ( JOINING PWHTed sections earlier at site )

Proposal - 

1.MOC - SA 516 GR 70 

2.BUTTERING - ENiCrFe2 on 24 m section end and other at 13 m section end)

3,PWHT (section PWHT - One of 24  length and other 13 m)
 of  - 620 Deg C - 125 MINUTES 

4.Bevel preparation 

5.NDT - DPT 

Welding at site ( 24 m section with 13 m section) - ENiCrFe2 OR E309 

6.NDT - DPT AND UT

Expert opinion please  and share experience if any 

Vishwas 

--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
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[MW:32577] SA 516 GR 70- AVOIDANCE OF PWHT - 40 mm thickness

The vessel details are 

MOC - SA 516 GR 70 

DIAMETER- 4020mm

LENGTH - 37 MTR

MDMT = - 50 Deg C to  + 250 Deg C 

SERVICE - Non lethal /No Hydrogen Service 

We are proposing Vessel length build up as per FURNACE LENGTH CAPACITY(24 m maximum) and one joint WITHOUT PWHT  ( JOINING PWHTed sections earlier at site )

Proposal - 

1.MOC - SA 516 GR 70 

2.BUTTERING - ENiCrFe2 on 24 m section end and other at 13 m section end)

3,PWHT (section PWHT - One of 24  length and other 13 m)
 of  - 620 Deg C - 125 MINUTES 

4.Bevel preparation 

5.NDT - DPT 

Welding at site ( 24 m section with 13 m section) - ENiCrFe2 OR E309 

6.NDT - DPT AND UT

Expert opinion please  and share experience if any 

Vishwas 

--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/bdca7c90-9d2b-4df4-a685-5e7745a76351n%40googlegroups.com.