Clarification of PQR/WPS in FCAW process

[arvinda shan]

Dear Experts,

 

I need some clarification in document review. PQR qualified in FCAW process for 27 mm plate in 3G position. WPS is prepared for structural joint for 34 mm in all positions.What is the essential one?

 

1. In FCAW proces PQR , Electrode AWS no. E71-T-1C is used. But in WPS E71-T-1 is mentioned. Whether its ok?
2. PQR in FCAW qualifies 3G position of 27mm plates as per ASME SEc.IX and API-650. What is qualification of position in WPS for 3G whether its ALL POSITION or only 3G postion?
3. The WPS is to be used for structural activies. ie. as per AWS D1.1. But in WPS also mentioned reference code as ASME sec.IX and AWS D1.1.

Plz clarify.

 

Thanks

 

Arvinda.

[Dinesh Somwanshi]

Dear arvinda,

the thickness & welding position  both are essential variables.In wps what mention for the E71-T-1 Wheather it is single shield or 80-20 .

generally E71-T-1c with 100% co2 ,E 71-T-1M is 80%ar+20%co2 .You can refere from the gas characteristics in wps .

3G(UP) WILL QUALIFY YOUR PROCEDURE 1G -2G -3G (UP) ONLY.

REFERENCE : AWS D 1.1

REGARDS

DINESH

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[Ramchandra vichare]

Dear friends,

WPS Must be corrected accordingly.
If Welder Qualified in 3G welder can weld 1G&3G position only.(Pl go trhough ASME Sec-IX).
All informations must be fill accordance with formate issued in ASME Sec-IX and not to take shortcut for information because everyone dont know what is what

Regards,
RKVichare.

[Karthik]

Hi, Find below the answers as marked in Red color. In FCAW proces PQR , Electrode AWS no. E71-T-1C is used. But in WPS E71-T-1 is mentioned. Whether its ok? - OK PQR in FCAW qualifies 3G position of 27mm plates as per ASME SEc.IX and API-650. What is qualification of position in WPS for 3G whether its ALL POSITION or only 3G postion? - As per ASME Sec.IX, Position is not an essential variable for WPS.WPS qualified in any position can be used for all position. The WPS is to be used for structural activies. ie. as per AWS D1.1. But in WPS also mentioned reference code as ASME sec.IX and AWS D1.1. - If your construction Code is AWS then the WPS shall be qualified with AWS Code only.You please review your WPS/PQR Whether it has been qualified with AWS or not.if the test and variables are meets the AWS limitation then you just revise the applicable code to AWS(remove ASME) or you can rewrite the WPS to AWS 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 Fri, 7/15/11, Ramchandra vichare <vicha...@indiatimes.com> wrote:

[kannayeram gnanapandithan]

if nothing is mentioned for gas, it is understood that it is usable in full CO2 /Ar+co mixture

--

[Chinnappa rao Basuthkar]

Dear Members

 

Is any body have qualfied WPS and PQR for reference purpose only for FCAW as per AWS D1.1 for the thickeness of material from 25 mm to 50mm.

 

If the WPS is qualifed for CJP ( Complete Joint Penetraion)  is it going to qualify for for PJP ( Partial joint penetraion )  and Filler welds also.

 

Regards

 

Chinnappa Rao Basuthakr

--
Thanking you

With best regards
 Rao

[K.Babu]

Hi Rao,

 

Is it pipe or plate ?

 

For Non tubular joints CJP WPS application to PJP joint need to verify with three macro etch specimens as per AWS D1.1. Cl 4.10.3

Thanks & regards,

K.Babu

[Ramin Kondori]

Dear Arvinda:

Please find my answers below

1. In FCAW proces PQR , Electrode AWS no. E71-T-1C is used. But in
WPS, E71-T-1 is mentioned. Whether its ok?
It is OK.
-------------------------------------------
2. PQR in FCAW qualifies 3G position of 27mm plates as per ASME SEc.IX

and API-650. What is qualification of position in WPS for 3G whether
its ALL POSITION or only 3G postion?

As a general rule, if the deposited weld in a given position is
defect-free, that position should be qualified with same PQR. The
reason why codes restrict position for qualification is that it may be
impractical to produce an acceptable weld deposit with that specific
WPS in other position(s).
---------------------------------------------
3. The WPS is to be used for structural activies. ie. as per AWS D1.1

But in WPS also mentioned reference code as ASME sec.IX and AWS D1.1.

No problem, just revise your WPS mentioning AWS D1.1 as reference code.

Regards
Ramin Kondori
QA/QC Manager
IRAN-LNG project
IWE AT 0070

On 7/13/11, arvinda shan <arvin...@gmail.com> wrote:
> Dear Experts,
>
> I need some clarification in document review. PQR qualified in FCAW process
> for 27 mm plate in 3G position. WPS is prepared for structural joint for 34
> mm in all positions.What is the essential one?
>
>

> 1. In FCAW proces PQR , Electrode AWS no. E71-T-1C is used. But in WPS

> E71-T-1 is mentioned. Whether its ok?

> 2. PQR in FCAW qualifies 3G position of 27mm plates as per ASME SEc.IX

> and API-650. What is qualification of position in WPS for 3G whether its
> ALL
> POSITION or only 3G postion?

> 3. The WPS is to be used for structural activies. ie. as per AWS D1.1.

> But in WPS also mentioned reference code as ASME sec.IX and AWS D1.1.
>
> Plz clarify.
>
> Thanks
>
> Arvinda.
>

> --
> To post to this group, send email to material...@googlegroups.com
> To unsubscribe from this group, send email to
> materials-weld...@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.
>

--
Ramin Kondori
* QC/Welding Engineer *
* IWE AT 0070*

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*Ramin Kondori*

QA/QC Manager

IRAN-LNG Preoject

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