Sunday, November 30, 2008

[MW:1365] Impact testing of dissimilar joint.



Dear Friends,
 
I have to do a welding procedure for welding  SA203 Gr.E to SA 516 Gr.70. Process GTAW+SMAW. The joint thickness is 19.0 mm. The MDMT for 516 gr.70 portion of vessel is  minus 29 degree C and the MDMT of SA 203 side is minus 87 degree C. The CS portion is exempted from impact test as per curve D in Sec. Viii Div.1. SA 203 Gr.E is also reffed in Curve D.
 
 Is it required to do impact testing of this joint?. If it required, at what temperature? .-29 degree C or -87 degree C?.
 
 If it is required, which HAZ I have to test?. 203 side or 516 side?.
 
PWHT is asked for 203 material side. Is it required PWHT for this dissimilar joint also?
 
Your advise will be highly appreciable.

Thanks & Regards
Muhammed Ibrahim PK



--
Thanks & Regards
Muhammed Ibrahim PK

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Saturday, November 29, 2008

[MW:1363] Re :[MW:1358] Re: Selection of welding consumables for E 410 grade steel of IS: 2062:2006

Please use the following consumables:
1) SMAW-- E7018
2) GMAW -- ER70S-6
3) FCAW -- E71T-1
4) SAW -- EH14 F7A4

Regards

Prem Nautiyal
On Thu, 27 Nov 2008 09:25:36 +0530 materials-welding@googlegroups.com wrote
You should opt for E7018 Electrode for SMAW process and ER70S wire for GMAW process.You should also check what is the actual Carbon Equivalent from the material TC by IIW formula C+Mn/6+(Cr+Mo+V)/5+(Cu+Ni)/15 or else by short formula C+Mn/6.It is preferable if it is between 0.41 to 0.43 and does not cross 0.45.Fully killed steel is preferable.

Regards
Aarpee

 
On 11/26/08, Polaris wrote:



Date: November 26, 2008
 
Dear Mr. Bathula Raghuram & friends,
 
 
Re:    fabrication of I- Girder & Box Girder made of steel of Grade Designation E 410 (Fe 540) of IS 2062: 2006, having plate thickness range 10 m.m. to 36 m.m.

 
I shall be highly obliged if you kindly help me in selection of welding consumables for the above Steel grade:-
 
The Chemical Composition of steel:





Grade Designation


C


Mn


S


P


Si


Carbon Equivalent (CE),Max


Method of deoxidationn




E 410 (Fe 540)


0.20


1.60


0.045


0.045


0.45


0.44


Semi-killed or killed
(Microalloying elements like Nb, V ,Ti and B shall be added singly or in combination. Total microalloying element shall not be more than 0.25)

 
Mechanical Properties of steel:





Grade Designation


Tensile Strength R m
Min
MPa


Yield Stress, R eH

Min
MPa


Percentage Elongation, A
at Gauge Length, L0    5.65    ¡Ì So 

Min


Internal
Bend
Diameter
Min


Charpy V- Notch
Impact Energy
Min               
J




 


< 20


20-40


40 >


¡Ü 25


>25


Room
Temp.


- 20



E 410 (Fe 540)


540


410


390


380


20


2t


3t


50


25
 
For the above welding I have provisionally selected following welding consumables for various welding processes:-
 
Electrode for SMAW: - E 8018 G of AWS A5.5
 
Solid wire for GMAW (with Co2 Shielding): - ER 80 S-G of AWS A 5.28
 
Flux-wire combination for SAW: - F8A2 - EA2-A2 of  AWS A5.23 alternatively F 7A4 - EH14 of AWS 5.17
 
I shall be obliged if you kindly send me your suggestions/ comments on the above selection of electrode, wire & SAW Flux and also let me know some reputed compatible product/brand name of the same.

 
With regards,
 
Yours Sincerely,
 
Soumitra Kumar De
Polaris Engineers ( I ) Pvt. Ltd.
48/19, Swiss Park, Kolkata- 700 033.
Tel: (033) 2424-5386;  Fax: (033) 2424-4571; Cell: +91 94330-15347
 
 
-----Original Message-----
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Bathula Raghuram (Mumbai - PIPING)

Sent: Wednesday, November 26, 2008 8:40 AM

To: materials-welding@googlegroups.com
Subject: [MW:1355] RE: 1354] RE: Buried Fittings

 
It could be poor design, why you need flanges in a buried pipeline?
Most cost effective will be coal tar wrapping





From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Fly Yalung

Sent: Tuesday, November 25, 2008 5:44 PM

To: materials-welding @google
Subject: [MW:1354] RE: Buried Fittings
 





Dear Gentlemen,

Good day to everyone. I have one dilema regarding some fittings to be welded to a pipe and will be buried 1.5 meter below grade surface. Is this right thing to done? If correct what is the most cost effective protection that we can do to protect the buried fittings(example- Flanges).


Best regards,

Fly L. Yalung

Material Egineer

M. A. Al-Kawari Est.

K.S.A.

 
 



PREM S NAUTIYAL
CELL : 9820313278 --~--~---------~--~----~------------~-------~--~----~
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[MW:1364] Re :[MW:1352] Re: Usage of AC in aluminium welding.

AC transformer is used for better surface cleaning action and less oxidation in AL welding...

On Tue, 25 Nov 2008 13:35:58 +0800 materials-welding@googlegroups.com wrote
yes, AC has less heat input as well as less weld penetration.
 
Regards

 
On 11/25/08, Muhammed Ibrahim wrote:


Hi friends,
 
Anybody can give an explanation why AC current is recommended for Aluminium welding?
 
Is there any effect in heat input when using AC intead of DC?

Thanks & Regards
Muhammed Ibrahim PK
 

PREM S NAUTIYAL
CELL : 9820313278 --~--~---------~--~----~------------~-------~--~----~
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Friday, November 28, 2008

[MW:1362] RE: 1361] MMA welding of super duplex grade S32750

Data sheet for Avesta 2507/P100 attached.

Further information available on the Avesta Brochure “How to weld duplex SS” which I posted on this group on 3rd Oct.

 

Regards,

 

Abby Joseph

 

 

 


From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Bathula Raghuram (Mumbai - PIPING)
Sent: 27 November 2008 16:08
To: materials-welding@googlegroups.com
Subject: [MW:1361] MMA welding of super duplex grade S32750

 

You can the data sheet of Avesta 2507/P100 for details.


From: p_chavdarov@mail.bg [mailto:p_chavdarov@mail.bg]
Sent: Thursday, November 27, 2008 4:01 PM
To: Bathula Raghuram (Mumbai - PIPING)
Subject: duplex stainless steels

 


Can somebody tell me some details for MMA welding of super duplex grade S32750 with 10 mm thickness. I mean welding regimes, consumables, joint preparation, heat input etc.
 
Preliminary thanks
 
Best regards
Parvan Chavdarov 




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Thursday, November 27, 2008

[MW:1361] MMA welding of super duplex grade S32750

You can the data sheet of Avesta 2507/P100 for details.


From: p_chavdarov@mail.bg [mailto:p_chavdarov@mail.bg]
Sent: Thursday, November 27, 2008 4:01 PM
To: Bathula Raghuram (Mumbai - PIPING)
Subject: duplex stainless steels

 


Can somebody tell me some details for MMA welding of super duplex grade S32750 with 10 mm thickness. I mean welding regimes, consumables, joint preparation, heat input etc.
 
Preliminary thanks
 
Best regards
Parvan Chavdarov 




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To unsubscribe from this group, send email to materials-welding-unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
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[MW:1360] RE: 1359] RE: 1358] Re: Selection of welding consumables for E 410 grade steel of IS: 2062:2006

Another option is to use E70XX/ER70S-6/F7A2-EM12K consumables, with additional technical requirement of specified minimum all-weld metal UTS and YS matching the Fe540 minimums. Most 70-class weld metals will actually give 540MPa UTS in actual batches.

 

 

 


From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Bathula Raghuram (Mumbai - PIPING)
Sent: 27 November 2008 09:31
To: materials-welding@googlegroups.com
Subject: [MW:1359] RE: 1358] Re: Selection of welding consumables for E 410 grade steel of IS: 2062:2006

 

Is Fe540 modified version of Fe410? (any change in IS2062-2006, I have not seen this code),

since the UTS is 540Mpa your selection of 80XX is suitable, however properties for G classified consumables shall be verified from the consumable datasheet, as AWS does not guarantee chem. and impact properties for this classification (G).


From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Ramprasad Chari
Sent: Thursday, November 27, 2008 9:26 AM
To: materials-welding@googlegroups.com
Subject: [MW:1358] Re: Selection of welding consumables for E 410 grade steel of IS: 2062:2006

 

You should opt for E7018 Electrode for SMAW process and ER70S wire for GMAW process.You should also check what is the actual Carbon Equivalent from the material TC by IIW formula C+Mn/6+(Cr+Mo+V)/5+(Cu+Ni)/15 or else by short formula C+Mn/6.It is preferable if it is between 0.41 to 0.43 and does not cross 0.45.Fully killed steel is preferable.

Regards

Aarpee

 

On 11/26/08, Polaris <polaris@cal2.vsnl.net.in> wrote:

Date: November 26, 2008

 Dear friends,

  

Re:    fabrication of I- Girder & Box Girder made of steel of Grade Designation E 410 (Fe 540) of IS 2062: 2006, having plate thickness range 10 m.m. to 36 m.m.

 

I shall be highly obliged if you kindly help me in selection of welding consumables for the above Steel grade:-

 

The Chemical Composition of steel:

Grade Designation

C

Mn

S

P

Si

Carbon Equivalent (CE),Max

Method of deoxidationn

E 410 (Fe 540)

0.20

1.60

0.045

0.045

0.45

0.44

Semi-killed or killed

(Microalloying elements like Nb, V ,Ti and B shall be added singly or in combination. Total microalloying element shall not be more than 0.25)

 

Mechanical Properties of steel:

Grade Designation

Tensile Strength R m

Min

MPa

Yield Stress, R eH

Min

MPa

Percentage Elongation, A

at Gauge Length, L0    5.65    So 

Min

Internal

Bend

Diameter

Min

Charpy V- Notch

Impact Energy

Min               

J

 

< 20

20-40

40 >

25

>25

Room

Temp.

- 20

E 410 (Fe 540)

540

410

390

380

20

2t

3t

50

25

 

For the above welding I have provisionally selected following welding consumables for various welding processes:-

 

Electrode for SMAW: - E 8018 G of AWS A5.5

 

Solid wire for GMAW (with Co2 Shielding): - ER 80 S-G of AWS A 5.28

 

Flux-wire combination for SAW: - F8A2 - EA2-A2 of  AWS A5.23 alternatively F 7A4 - EH14 of AWS 5.17

 

I shall be obliged if you kindly send me your suggestions/ comments on the above selection of electrode, wire & SAW Flux and also let me know some reputed compatible product/brand name of the same.

 

With regards,

 

Yours Sincerely,

 Soumitra Kumar De

Polaris Engineers ( I ) Pvt. Ltd.

48/19, Swiss Park, Kolkata- 700 033.

Tel: (033) 2424-5386;  Fax: (033) 2424-4571; Cell: +91 94330-15347



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To unsubscribe from this group, send email to materials-welding-unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
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[MW:1359] RE: 1358] Re: Selection of welding consumables for E 410 grade steel of IS: 2062:2006

Is Fe540 modified version of Fe410? (any change in IS2062-2006, I have not seen this code),

since the UTS is 540Mpa your selection of 80XX is suitable, however properties for G classified consumables shall be verified from the consumable datasheet, as AWS does not guarantee chem. and impact properties for this classification (G).


From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Ramprasad Chari
Sent: Thursday, November 27, 2008 9:26 AM
To: materials-welding@googlegroups.com
Subject: [MW:1358] Re: Selection of welding consumables for E 410 grade steel of IS: 2062:2006

 

You should opt for E7018 Electrode for SMAW process and ER70S wire for GMAW process.You should also check what is the actual Carbon Equivalent from the material TC by IIW formula C+Mn/6+(Cr+Mo+V)/5+(Cu+Ni)/15 or else by short formula C+Mn/6.It is preferable if it is between 0.41 to 0.43 and does not cross 0.45.Fully killed steel is preferable.

Regards

Aarpee

 

On 11/26/08, Polaris <polaris@cal2.vsnl.net.in> wrote:

Date: November 26, 2008

 Dear friends,

  

Re:    fabrication of I- Girder & Box Girder made of steel of Grade Designation E 410 (Fe 540) of IS 2062: 2006, having plate thickness range 10 m.m. to 36 m.m.

 

I shall be highly obliged if you kindly help me in selection of welding consumables for the above Steel grade:-

 

The Chemical Composition of steel:

Grade Designation

C

Mn

S

P

Si

Carbon Equivalent (CE),Max

Method of deoxidationn

E 410 (Fe 540)

0.20

1.60

0.045

0.045

0.45

0.44

Semi-killed or killed

(Microalloying elements like Nb, V ,Ti and B shall be added singly or in combination. Total microalloying element shall not be more than 0.25)

 

Mechanical Properties of steel:

Grade Designation

Tensile Strength R m

Min

MPa

Yield Stress, R eH

Min

MPa

Percentage Elongation, A

at Gauge Length, L0    5.65    So 

Min

Internal

Bend

Diameter

Min

Charpy V- Notch

Impact Energy

Min               

J

 

< 20

20-40

40 >

25

>25

Room

Temp.

- 20

E 410 (Fe 540)

540

410

390

380

20

2t

3t

50

25

 

For the above welding I have provisionally selected following welding consumables for various welding processes:-

 

Electrode for SMAW: - E 8018 G of AWS A5.5

 

Solid wire for GMAW (with Co2 Shielding): - ER 80 S-G of AWS A 5.28

 

Flux-wire combination for SAW: - F8A2 - EA2-A2 of  AWS A5.23 alternatively F 7A4 - EH14 of AWS 5.17

 

I shall be obliged if you kindly send me your suggestions/ comments on the above selection of electrode, wire & SAW Flux and also let me know some reputed compatible product/brand name of the same.

 

With regards,

 

Yours Sincerely,

 Soumitra Kumar De

Polaris Engineers ( I ) Pvt. Ltd.

48/19, Swiss Park, Kolkata- 700 033.

Tel: (033) 2424-5386;  Fax: (033) 2424-4571; Cell: +91 94330-15347


--~--~---------~--~----~------------~-------~--~----~
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding-unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
-~----------~----~----~----~------~----~------~--~---

[MW:1358] Re: Selection of welding consumables for E 410 grade steel of IS: 2062:2006

You should opt for E7018 Electrode for SMAW process and ER70S wire for GMAW process.You should also check what is the actual Carbon Equivalent from the material TC by IIW formula C+Mn/6+(Cr+Mo+V)/5+(Cu+Ni)/15 or else by short formula C+Mn/6.It is preferable if it is between 0.41 to 0.43 and does not cross 0.45.Fully killed steel is preferable.
Regards
Aarpee

 
On 11/26/08, Polaris <polaris@cal2.vsnl.net.in> wrote:

Date: November 26, 2008

 

Dear Mr. Bathula Raghuram & friends,

 

 

Re:    fabrication of I- Girder & Box Girder made of steel of Grade Designation E 410 (Fe 540) of IS 2062: 2006, having plate thickness range 10 m.m. to 36 m.m.

 

I shall be highly obliged if you kindly help me in selection of welding consumables for the above Steel grade:-

 

The Chemical Composition of steel:

Grade Designation

C

Mn

S

P

Si

Carbon Equivalent (CE),Max

Method of deoxidationn

E 410 (Fe 540)

0.20

1.60

0.045

0.045

0.45

0.44

Semi-killed or killed

(Microalloying elements like Nb, V ,Ti and B shall be added singly or in combination. Total microalloying element shall not be more than 0.25)

 

Mechanical Properties of steel:

Grade Designation

Tensile Strength R m

Min

MPa

Yield Stress, R eH

Min

MPa

Percentage Elongation, A

at Gauge Length, L0    5.65    So 

Min

Internal

Bend

Diameter

Min

Charpy V- Notch

Impact Energy

Min               

J

 

< 20

20-40

40 >

≤ 25

>25

Room

Temp.

- 20

E 410 (Fe 540)

540

410

390

380

20

2t

3t

50

25

 

For the above welding I have provisionally selected following welding consumables for various welding processes:-

 

Electrode for SMAW: - E 8018 G of AWS A5.5

 

Solid wire for GMAW (with Co2 Shielding): - ER 80 S-G of AWS A 5.28

 

Flux-wire combination for SAW: - F8A2 - EA2-A2 of  AWS A5.23 alternatively F 7A4 - EH14 of AWS 5.17

 

I shall be obliged if you kindly send me your suggestions/ comments on the above selection of electrode, wire & SAW Flux and also let me know some reputed compatible product/brand name of the same.

 

With regards,

 

Yours Sincerely,

 

Soumitra Kumar De

Polaris Engineers ( I ) Pvt. Ltd.

48/19, Swiss Park, Kolkata- 700 033.

Tel: (033) 2424-5386;  Fax: (033) 2424-4571; Cell: +91 94330-15347

 

 

-----Original Message-----
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Bathula Raghuram (Mumbai - PIPING)
Sent:
Wednesday, November 26, 2008 8:40 AM
To: materials-welding@googlegroups.com
Subject: [MW:1355] RE: 1354] RE: Buried Fittings

 

It could be poor design, why you need flanges in a buried pipeline?

Most cost effective will be coal tar wrapping


From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Fly Yalung
Sent:
Tuesday, November 25, 2008 5:44 PM
To: materials-welding @google
Subject: [MW:1354] RE: Buried Fittings

 

Dear Gentlemen,

Good day to everyone. I have one dilema regarding some fittings to be welded to a pipe and will be buried 1.5 meter below grade surface. Is this right thing to done? If correct what is the most cost effective protection that we can do to protect the buried fittings(example- Flanges).

Best regards,

Fly L. Yalung

Material Egineer

M. A. Al-Kawari Est.

K.S.A.

 

 


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To unsubscribe from this group, send email to materials-welding-unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
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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...