Materials & Welding: August 2011

Wednesday, August 31, 2011

Re: [MW:12327] Dual Qualification to AWS D1.1 and ASME Sect IX in 6G/6GR Position

Dear Ganesan

In general you can qualify welder and welding operator and the procedure with both standards, but about 6GR that is defined in AWD D1.1, this position covers all other positions, but in ASME Sec. IX because you shall mention this position as a special position, the qualification range will be just this position.

About the testing according to ASME and AWS, test description and dimension are the same. You have to care just about ranges of qualifications.

Regards

On Tue, Aug 30, 2011 at 5:13 PM, Ganesan Nallathamby <ganesan6133@hotmail.com> wrote:

Dear Experts

I'm not sure if either AWS D1.1 and/or ASME Sect. IX ( both year 2010 )prohibits using PQR qualified to other codes.

However ASME do not have any provision for 6GR Position but only recognize "special position" in QW-303.3.

According to AWS D1.1-Note "d" in Table 4.10 & Note "c" in Table 4.1-PQT Pls refer attached AWS Interpretation

I need all you guidance best method on:-

1 - Qualifying Welding Procedure Qualification to AWS D1.1 & ASME Sect IX in one Test. ( with/without Impact Energy value ).
2 - Welder Qualification using PQR qualified to AWS D1.1 & ASME Sect IX
3 - Propose to use Dual Codes Qualification in one Welder/Welding Operator's Certificate.

And also want to welders using PQR qualified to AWS D1.1 & ASME Sect IX.
Weld Process - SMAW , FCAW . GMAW , GTAW , SMAW/FCAW, GTAW/SMAW....etc

My purpose.
1 - Reduce number of PQR and Welder Qualification
2 - Minimize Certification documenation and necessary follow-up
3 - Muliti-purpose welder/welding operator

With Warmest Regards

Ganesan

H/P - 65 9189 6531

"Happiness keeps you Sweet,
Trials keep you Strong,
Sorrow keeps you Human,
Failure keeps you humble
and Success keeps you glowing,
but only Faith & Attitude Keeps you going.. "

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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.

Tuesday, August 30, 2011

[MW:12326] Dual Qualification to AWS D1.1 and ASME Sect IX in 6G/6GR Position

Dear Experts

I'm not sure if either AWS D1.1 and/or ASME Sect. IX ( both year 2010 )prohibits using PQR qualified to other codes.

However ASME do not have any provision for 6GR Position but only recognize "special position" in QW-303.3.

According to AWS D1.1-Note "d" in Table 4.10 & Note "c" in Table 4.1-PQT Pls refer attached AWS Interpretation

I need all you guidance best method on:-

1 - Qualifying Welding Procedure Qualification to AWS D1.1 & ASME Sect IX in one Test. ( with/without Impact Energy value ).
2 - Welder Qualification using PQR qualified to AWS D1.1 & ASME Sect IX
3 - Propose to use Dual Codes Qualification in one Welder/Welding Operator's Certificate.

And also want to welders using PQR qualified to AWS D1.1 & ASME Sect IX.
Weld Process - SMAW , FCAW . GMAW , GTAW , SMAW/FCAW, GTAW/SMAW....etc

My purpose.
1 - Reduce number of PQR and Welder Qualification
2 - Minimize Certification documenation and necessary follow-up
3 - Muliti-purpose welder/welding operator

With Warmest Regards

Ganesan

H/P - 65 9189 6531

"Happiness keeps you Sweet,
Trials keep you Strong,
Sorrow keeps you Human,
Failure keeps you humble
and Success keeps you glowing,
but only Faith & Attitude Keeps you going.. "

Re: [MW:12325] Code Explanations

Philip,

I just finished working on a project with the same material specification (USAN Project)

You did not mention the welding process you intend to use as that will determine the choice of consumable. API 2W Gr. 50 (TMCP) is design to have an improved Impact property at low temperature.

With reference to your query,

1. The thickness combination especially the T1 (Bevelled) will be selected in other to cover the thickness ranges in production. If the project specification refers you to AWS D1.1 code as a reference code without additional conditions, then refer to AWS D1.1 table 4.2 for your thickness selection. Using the standard pipe 8" sch. 80/sch. 140 (refer to figure 4.27) will qualify tubular diameter of 4" and above with thickness of 5mm to unlimited, but i know that your client specification might over ride this clause. Note that the thickness selected has little to do with the impact property but rather, your choice of consumable and the welding parameters will greatly influence the Impact values. AWS D1.1 clause 5.8 state that PWHT shall be carried out when required by contract document and clause 3.14 (2) stated that PWHT shall not be carried out on TMCP materials.

Note also that according to API 2W paragraph 1.2 stated "Due to the inherent characteristic of TMCP method, plates manufactured to this spec cannot be form or Post weld heat treated at temperatures above 1100°F (595°C) without some risk of sustaining irreversible and significant losses in strength and toughness".

2. YES, this qualification will qualify welding on API 2MT1 gr. 50 because, they are both in the same group AWS D1.1 table 3.1 and their delivery condition is the same (TMCP). Both also have same weldability.

3. Yes you can use a lower thickness. Note that according to ASME sec IX, the weld metal thickness t deposited during qualification qualified for 2t in production.

Regards,

Rems Okonkwo

Welding Engineer

Nigerdock Nig. PLC-FZE

Snake Island Integrated Free Zone

Apapa, Lagos, Nigeria

On Mon, Aug 29, 2011 at 10:16 AM, Philip, Taiye (Lagos) <Taiye.Philip@deltaafrik.com> wrote:

Hello Gents,

I want to carry out a welding procedure qualification testing for welding jackets structural members, the applicable construction code is AWS D1.1. Project material is API 2W Gr 50 pipe rolled from TMCP plates, and job maximum thickness is 76.2mm,and project requires CVN testing at (-40°C).

1.      What will be the best combination of thickness ( T1 & T2 )for the pipes to produce a TKY joint that will pass CVN testing at the above job required CVN testing temperature ? will PWHT be applicable as per code? Also specify code references.

2.      Will these qualification qualifies welding on API 2MT1 Gr 50 pipes rolled from TMCP plates with thickness 50.8mm with CVN requirement of (-30°C).

3.       I am required to make a procedure for welding pressure vessel of thickness 75mm as per ASME VIII DIV 1, project material is ASTM A 516 Gr 70 N and project requires cvn testing at (-30°C), will it be possible to qualify these procedure with a lesser thickness of the same material, will it meet the impact requirement as per applicable code? Please help with your contributions and provide applicable code references

*** WORLEYPARSONS GROUP NOTICE *** "This email is confidential. If you are not the intended recipient, you must not disclose or use the information contained in it. If you have received this email in error, please notify us immediately by return email and delete the email and any attachments. Any personal views or opinions expressed by the writer may not necessarily reflect the views or opinions of any company in the WorleyParsons Group of Companies."

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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.

Monday, August 29, 2011

[MW:12324] Code Explanations

Hello Gents,

I want to carry out a welding procedure qualification testing for welding jackets structural members, the applicable construction code is AWS D1.1. Project material is API 2W Gr 50 pipe rolled from TMCP plates, and job maximum thickness is 76.2mm,and project requires CVN testing at (-40°C).

1. What will be the best combination of thickness ( T1 & T2 )for the pipes to produce a TKY joint that will pass CVN testing at the above job required CVN testing temperature ? will PWHT be applicable as per code? Also specify code references.

2. Will these qualification qualifies welding on API 2MT1 Gr 50 pipes rolled from TMCP plates with thickness 50.8mm with CVN requirement of (-30°C).

3. I am required to make a procedure for welding pressure vessel of thickness 75mm as per ASME VIII DIV 1, project material is ASTM A 516 Gr 70 N and project requires cvn testing at (-30°C), will it be possible to qualify these procedure with a lesser thickness of the same material, will it meet the impact requirement as per applicable code? Please help with your contributions and provide applicable code references

*** WORLEYPARSONS GROUP NOTICE *** "This email is confidential. If you are not the intended recipient, you must not disclose or use the information contained in it. If you have received this email in error, please notify us immediately by return email and delete the email and any attachments. Any personal views or opinions expressed by the writer may not necessarily reflect the views or opinions of any company in the WorleyParsons Group of Companies."

[MW:12323] RE: 12313] change in welding color in Cr Mo V steel

In general

Welders performance tests are governed by codes and prepared in accordance with WPS suitable for the work to be undertaken. Colour change might be suggesting some changes in electrical characteristics, but it certainly is not a base sufficient enough to reject the weld. Kindly apply the requisite tests for the weld in question if visually you are satisfied with the weld.

The acceptance criteria for weld performance test shall apply in deciding the disposition of this weld and the ability of the welder to fabricate a sound weld that meets the requirements of the applicable code.

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of sedef pala
Sent: 26 August 2011 07:44 PM
To: materials-welding
Subject: [MW:12313] change in welding color in Cr Mo V steel

Hi to Everybody,

Attached i included two photos from welding (material Cr Mo V steel, process TIG ). As you can see from picture there is change in color of the weld.Visualy my interpretation is that welder increaed welding speed (therefore heat input was decreased), in copper colored area he welded more faster and made weld puddles more thick.Where on left side color of the weld pool looks good(similar to base material) and paddles are in range.

My question is " if the weld puddles looks thicker and color is like copper can it be rejected, especially in welders skill test"?

Thanks in advance for any opinion.

[MW:12322] Welding of Galvanized steel

All,

Sharing for knowledge. Pls add to this subject, from your experiance in order to be usefull to many.

Thanks & Regards,

Vinod Bhatt

Sunday, August 28, 2011

Re: [MW:12321] Query / Machining of Sch 40 to Sch 30 / 24" RF WN Flange

Is it mean trimmed/chamfered? Code is allowed, you can see the sizes/figure in the B16.5 book, but certain customers require ID of flange same with ID of pipe.

Sent from my Hape Buluk®
powered by Sinyal Lieur INDOSAT

From: Vino Varghese <vinopvarghese@gmail.com>

Sender: materials-welding@googlegroups.com

Date: Sat, 27 Aug 2011 15:04:12 +0300

To: <materials-welding@googlegroups.com>

ReplyTo: materials-welding@googlegroups.com

Subject: [MW:12316] Query / Machining of Sch 40 to Sch 30 / 24" RF WN Flange

Dear All,

I would like to know whether standard ASME B 16.5 do allow machining of bevel edge to achieve required thickness?

The material is 24" WN RF Flange A105 ,Class 150- NACE , Normalised.

We are not able to procure standard fitting and done machining to achieve Sch 30 from Sch 40. Please note, not to entire length.

The dimension and thickness is verified and a Certificate of Compliance is produced.

Please advise with evidence(supporting Code) whether the material could be ACCEPTABLE.

Thanks & Regards

Vino-Doha

Re: [MW:12320] type 3 joint

Pls. refer UW12 . If type 3 joint is less than 24"Dia, efficiency can not be increased by RT

Regards,

Sasi

On Thu, Aug 25, 2011 at 7:21 PM, imran khan <imransian@gmail.com> wrote:

Dear Experts,

I need your urgent attention please

As per UW-12

Type 1........... both side welded butt joint(full radiography) ...........efficiency 1
Type 3............single vee but welded joints(no radiography)...........efficiency 0.60

my question is can i use type 3 joint as type 1 to get higher efficiency say 1.0 if the joint is 100% radiographed.
--

With Best Wishes,

Imran Khan

Cell:+966580790536

E-mail: Imransian@gmail.com

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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.

Re : [MW:12319] RE: 12305] CD4MC4 matraial

Thank you Pradip for your effort concerning your your research about this material. Really, as I work in the metallurgical and welding field, There is a customer who asked me to suggest him some filler material for welding this material grade CD4MC4. All I know is that material is used for some pump components. On my side, I will continue to find out more about this application. As soon I have the information, I will share it with you.

Thanks again.

Khemici Badri, Ing., M.Ing

SODEL

De : Muni Andy <cmkfc07@gmail.com>
À : materials-welding@googlegroups.com
Envoyé le : Samedi 27 Août 2011 8h08
Objet : Re: [MW:12315] RE: 12305] CD4MC4 matraial

The material may be CD4MCu.may be u appears is 4 in handwriting.
pls check.
Muniyandi
DNV

On Sat, Aug 27, 2011 at 9:39 AM, pgoswami <pgoswami@quickclic.net> wrote:

Hello Badri,

What's the ASTM or other material specifications related to CD4MC4 material? I did fairly detailed search on this material without any success. If you could provide more details it would be appreciated.

See the attached literature from 2 major foundries, all other grades are cast except this.

Appreciate more details from your end.

Thanks.

Pradip Goswami,P.Eng.IWE

Welding & Metallurgical Specialist & Consultant

Ontario,Canada.

Email-pgoswami@sympatico.ca,

pgoswami@quickclic.net

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of khemici badri
Sent: Thursday, August 25, 2011 8:13 AM
To: materials-welding@googlegroups.com
Subject: [MW:12305] CD4MC4 matraial

Hi everyone;

I would like to get some information on the CD4MC4 material. Untill now, I just know the CD4MCu duplex stainless steel grade.

Any comments are appreciated. Thanks in advance.

Badri

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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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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.

Re: [MW:12318] change in welding color in Cr Mo V steel

hi,

As it has a poor weld profile if should be rejected.

Regards

--- On Fri, 26/8/11, sedef pala <santasatana@gmail.com> wrote:

From: sedef pala <santasatana@gmail.com>
Subject: [MW:12313] change in welding color in Cr Mo V steel
To: "materials-welding" <materials-welding@googlegroups.com>
Date: Friday, 26 August, 2011, 11:13 PM

Hi to Everybody,

Attached i included two photos from welding (material Cr Mo V steel, process TIG ). As you can see from picture there is change in color of the weld.Visualy my interpretation is that welder increaed welding speed (therefore heat input was decreased), in copper colored area he welded more faster and made weld puddles more thick.Where on left side color of the weld pool looks good(similar to base material) and paddles are in range.

My question is " if the weld puddles looks thicker and color is like copper can it be rejected, especially in welders skill test"?

Thanks in advance for any opinion.

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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.

Saturday, August 27, 2011

Re: [MW:12317] change in welding color in Cr Mo V steel

Hii,

Color will veries depends on Heat Input ...

But your interpretation is not a criterai for Welder
Qualification/Skill test ....There will be governing the codes as per
project requirement ...

We need to Qualify the welders as per Code/Standards ..

And the result of Weldabilty will be depends on the Inspection/Testing
...(Not with Color)

Thank you

Suresh

On 8/26/11, sedef pala <santasatana@gmail.com> wrote:
> Hi to Everybody,
>
> Attached i included two photos from welding (material Cr Mo V steel, process
> TIG ). As you can see from picture there is change in color of the
> weld.Visualy my interpretation is that welder increaed welding speed
> (therefore heat input was decreased), in copper colored area he welded more
> faster and made weld puddles more thick.Where on left side color of the weld
> pool looks good(similar to base material) and paddles are in range.
>
> My question is " if the weld puddles looks thicker and color is like
> copper can it be rejected, especially in welders skill test"?
>
> Thanks in advance for any opinion.
>
> --
> 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.
>

--
Thanks & Best Regards,

Suresh

Mobile No: 91-92 92 905 905

[MW:12316] Query / Machining of Sch 40 to Sch 30 / 24" RF WN Flange

Dear All,

I would like to know whether standard ASME B 16.5 do allow machining of bevel edge to achieve required thickness?

The material is 24" WN RF Flange A105 ,Class 150- NACE , Normalised.

We are not able to procure standard fitting and done machining to achieve Sch 30 from Sch 40. Please note, not to entire length.

The dimension and thickness is verified and a Certificate of Compliance is produced.

Please advise with evidence(supporting Code) whether the material could be ACCEPTABLE.

Thanks & Regards

Vino-Doha

Re: [MW:12315] RE: 12305] CD4MC4 matraial

The material may be CD4MCu.may be u appears is 4 in handwriting.
pls check.
Muniyandi
DNV

On Sat, Aug 27, 2011 at 9:39 AM, pgoswami <pgoswami@quickclic.net> wrote:

Hello Badri,

What's the ASTM or other material specifications related to CD4MC4 material? I did fairly detailed search on this material without any success. If you could provide more details it would be appreciated.

See the attached literature from 2 major foundries, all other grades are cast except this.

Appreciate more details from your end.

Thanks.

Pradip Goswami,P.Eng.IWE

Welding & Metallurgical Specialist & Consultant

Ontario,Canada.

Email-pgoswami@sympatico.ca,

pgoswami@quickclic.net

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of khemici badri
Sent: Thursday, August 25, 2011 8:13 AM
To: materials-welding@googlegroups.com
Subject: [MW:12305] CD4MC4 matraial

Hi everyone;

I would like to get some information on the CD4MC4 material. Untill now, I just know the CD4MCu duplex stainless steel grade.

Any comments are appreciated. Thanks in advance.

Badri

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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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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:12312] RE: 12305] CD4MC4 matraial

Hello Badri,

What's the ASTM or other material specifications related to CD4MC4 material? I did fairly detailed search on this material without any success. If you could provide more details it would be appreciated.

See the attached literature from 2 major foundries, all other grades are cast except this.

Appreciate more details from your end.

Thanks.

Pradip Goswami,P.Eng.IWE

Welding & Metallurgical Specialist & Consultant

Ontario,Canada.

Email-pgoswami@sympatico.ca,

pgoswami@quickclic.net

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of khemici badri
Sent: Thursday, August 25, 2011 8:13 AM
To: materials-welding@googlegroups.com
Subject: [MW:12305] CD4MC4 matraial

Hi everyone;

I would like to get some information on the CD4MC4 material. Untill now, I just know the CD4MCu duplex stainless steel grade.

Any comments are appreciated. Thanks in advance.

Badri

Re: [MW:12314] Filler wire for galvanized

Dear All

We usually use E6010 for welding Low Alloy galvanized carbon steel pipes (SMAW welding)
Regards

SAMI
--- On Thu, 8/25/11, Vikram Bhat <kvikrambhat@gmail.com> wrote:

From: Vikram Bhat <kvikrambhat@gmail.com>
Subject: Re: [MW:12307] Filler wire for galvanized
To: materials-welding@googlegroups.com
Date: Thursday, August 25, 2011, 5:56 PM

Gents,

Usually cellulose electrodes are being used in order to get the better penetration of the zinc.

On Thu, Aug 25, 2011 at 2:54 PM, naveed ahmed <naveed_aytb@yahoo.com> wrote:

can any body clarify
which filler wire is required for welding galvanized pipe ?

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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.

Friday, August 26, 2011

[MW:12313] change in welding color in Cr Mo V steel

Re: [MW:12311] Filler wire for galvanized

Hi,
Please find herewith the attached file ,might be useful to you.

Thanks & Regards,

(Karthik)

Karthikeyan.S

QA/QC Manager

Getabec Energy Co.,Ltd.

379,Moo6,Soi8,Nikhomphatana,

Rayong-21180,

Thailand.

Phone: 0066 38 897035-8 (Off)

Fax: 0066 38 897034

Hand Phone: 0066 892512282

--- On Thu, 8/25/11, naveed ahmed <naveed_aytb@yahoo.com> wrote:

From: naveed ahmed <naveed_aytb@yahoo.com>
Subject: [MW:12303] Filler wire for galvanized
To: "materials-welding@googlegroups.com" <materials-welding@googlegroups.com>
Date: Thursday, August 25, 2011, 5:54 PM

can any body clarify
which filler wire is required for welding galvanized pipe ?

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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.

Thursday, August 25, 2011

Re: [MW:12310] type 3 joint

Yes

--- On Thu, 25/8/11, imran khan <imransian@gmail.com> wrote:

From: imran khan <imransian@gmail.com>
Subject: [MW:12308] type 3 joint
To: materials-welding@googlegroups.com
Date: Thursday, 25 August, 2011, 8:51 PM

Dear Experts,

I need your urgent attention please

As per UW-12

Type 1........... both side welded butt joint(full radiography) ...........efficiency 1
Type 3............single vee but welded joints(no radiography)...........efficiency 0.60

my question is can i use type 3 joint as type 1 to get higher efficiency say 1.0 if the joint is 100% radiographed.
--

With Best Wishes,

Imran Khan

Cell:+966580790536

E-mail: Imransian@gmail.com

--
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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.

Re: [MW:12309] type 3 joint

If it's a full penetration weld and you want to do RT1 or RT2 and it is a Longitudinal Seam, you can use 100% Joint Efficiency, If it is a Circ Seam RT1 is 100% and RT2 is 70%

On Thu, Aug 25, 2011 at 9:21 AM, imran khan <imransian@gmail.com> wrote:

Dear Experts,

I need your urgent attention please

As per UW-12

Type 1........... both side welded butt joint(full radiography) ...........efficiency 1
Type 3............single vee but welded joints(no radiography)...........efficiency 0.60

my question is can i use type 3 joint as type 1 to get higher efficiency say 1.0 if the joint is 100% radiographed.
--

With Best Wishes,

Imran Khan

Cell:+966580790536

E-mail: Imransian@gmail.com

--
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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:12308] type 3 joint

Dear Experts,

I need your urgent attention please

As per UW-12

Type 1........... both side welded butt joint(full radiography) ...........efficiency 1
Type 3............single vee but welded joints(no radiography)...........efficiency 0.60

my question is can i use type 3 joint as type 1 to get higher efficiency say 1.0 if the joint is 100% radiographed.
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With Best Wishes,

Imran Khan

Cell:+966580790536

E-mail: Imransian@gmail.com

Re: [MW:12307] Filler wire for galvanized

Gents,

Usually cellulose electrodes are being used in order to get the better penetration of the zinc.

On Thu, Aug 25, 2011 at 2:54 PM, naveed ahmed <naveed_aytb@yahoo.com> wrote:

can any body clarify
which filler wire is required for welding galvanized pipe ?

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Re: [MW:12306] Filler wire for galvanized

dear ,

It is difficult to weld galvanized pipe , first you have to grind the
ends of the pipe to be welded , you can use E70S3 for carbon steel
galvanized pipe ,when zinc burn off it produce smoke, it can cause
health risk.

On Thu, Aug 25, 2011 at 4:24 PM, naveed ahmed <naveed_aytb@yahoo.com> wrote:
> can any body clarify
> which filler wire is required for welding galvanized pipe ?
>
> --
> 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:12305] CD4MC4 matraial