Combination of GTAW & SMAW PQR for a WPS.

[Srinivas Engr]

Dear All,

As per ASME sec 9
PQR 1 - GTAW T - 7.11mm , 1.5 to 14.22mm - A106 Gr.B

PQR 2 - SMAW T - 12.70mm, 5 to 25.4mm - A 106 Gr.B

No PWHT & No toughness.

My doubt is,1) is it possible to combine the above WPS to make GTAW &
SMAW combination.?
If possible wats thickness range.?

2) & Regardless of WPS,
My welder is qualified with Tig Process & Arc Process in seprately,
Is it possible to put them in production for Same A106gr.b material in
combination like Tig root & Arc Filler.
If it not possible. Pl tell me para which restricts this.


Regards
Srinivas

[Karthik]

Hi, Case-1: According to QW200.4(a) and (b) you cannot combine these PQR's. (b) For GTAW, SMAW, GMAW, PAW, and SAW, or combinations of these processes, a PQR for a process recording a test coupon that was at least 1⁄2 in. (13 mm) thick may be combined with one or more other PQRs recording another welding process and any greater base metal thickness. In this case, the process recorded on the first PQR may be used to deposit the root layers using the process(es) recorded on that PQR up to 2t (for shortcircuiting type of GMAW, see QW-404.32) in thickness on base metal of the maximum thickness qualified by the other PQR(s) used to support the WPS. The requirements of Note (1) of tables QW-451.1 and QW-451.2 shall apply. Case-2: Yes/ you can use the welder(s) for combination of GTAW/SMAW 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 Sun, 3/6/11, Srinivas Engr <srinivas...@gmail.com> wrote:

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[kannayeram gnanapandithan]

no,

pl read qw 200.4

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[atul chaturvedi]

Dear Srinivas,

1-You can make one WPS with supoorting both PQR.
Welding Process-GTAW + SMAW
Thickness Range : Groove : 1.5 mm to 25.4 mm

2- Yes you can use the welder, but please check the Deposited Weld
Metal Thickness for that welder.

Regards
Atul Chaturvedi

[Elshan Feyzullayev]

Dear Karthik
where can we find the interpretation of the paragraph of 200.4 a( and b). It seems like we can combine the separate pqr's on welding of one weld joint.
regards,
elshan.
 

---

Date: Sun, 6 Mar 2011 17:49:51 -0800
From: karth...@yahoo.com
Subject: Re: [MW:10174] Combination of GTAW & SMAW PQR for a WPS.
To: material...@googlegroups.com

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

[Srinivas Engr]

Hi all

I cleared with case 2, i can use welder in combination if they
qualified seprately.

&
@ karthik sir,

If we put seprate PQR in 12.70 mm thick = to 1/2 inch.
case 1 is possible r not?
& as per qw 200.4, pl clear me 12.70mm thickness is acceptable as 1/2
inch or not
& else may we have to go for 13 mm & above only.


@ others comments r welcomed..

Rgds
Srinivas

[Bathula Raghuram (Mumbai - PIPING)]

QW-200.4(b) is applicable when qualification of WPSs for root deposits only may be made for higher thickness in combination

Otherwise in your case you can write a combination (GT+SM) WPS for 5.0-14.22mm

What is the MTC states if it states as 1/2" (12.7mm) then it can be accepted, otherwise it has to be 13mm minimum

Yes, you can use these welders in combination as per the qualification limits for WPS as well as WPQ

Hi all

&
@ karthik sir,

Rgds
Srinivas
________________________________________________________________________________________________________________________________

As per ASME sec 9
PQR 1 - GTAW T - 7.11mm , 1.5 to 14.22mm - A106 Gr.B
PQR 2 - SMAW T - 12.70mm, 5 to 25.4mm - A 106 Gr.B
No PWHT & No toughness.
My doubt is,1) is it possible to combine the above WPS to make GTAW &
SMAW combination.?
If possible wats thickness range.?
2) & Regardless of WPS,
My welder is qualified with Tig Process & Arc Process in seprately,
Is it possible to put them in production for Same A106gr.b material in
combination like Tig root & Arc Filler.
If it not possible. Pl tell me para which restricts this.

& 3) if we have to go as per 200.4b, if i thk 12.70mm 1/2 Inch.. is ok with that or else must to go for 13mm & above.
pl comment on above..
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