ASME IX - Welder's qualification Thickness range

[Zakaria ghrab]

Hi all,

  As per ASME sect IX table QW-452-1(b), for welder's qualified in test coupon thickness greater or equal than 13 mm, he's will be qualified to wed thickness " Maximum to be welded"

May my interpretation is true ??
In this case, Can i  qualify all welder's in 13 mm thickness, he will be qualified for all thick ( PWHT is not essential variable for welders) and cover all thickness range ?

Regards

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زكرياء غراب
GHRAB Zakaria
مسؤول عن الجودة
QA/QC SENAD
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المحمدية ـ المغرب

[VENKATA SWAMI REDDY KARRI]

yes you are right

2011/3/9 Zakaria ghrab <zakari...@gmail.com>

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[Prakas...@akersolutions.com]

Hi

 

Yes you are right but it is only applicable for Thickness of Weld Metal Qualified with minimum of three layers.

 

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From: material...@googlegroups.com [mailto:material...@googlegroups.com] On Behalf Of Zakaria ghrab
Sent: Wednesday, March 09, 2011 10:44 PM
To: material...@googlegroups.com
Subject: [MW:10246] ASME IX - Welder's qualification Thickness range

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[Shaunak Upadhyay]

Dear Friend,

You are correct.

As per this particular clause no. 1 to 12 mm means 2t weld metal deposition and 13 and higher means maximum to be qualified.

Regards,

Shaunak

2011/3/9 Zakaria ghrab <zakari...@gmail.com>

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[John Henning]

You are correct, provided only a single welding process is used to weld the coupon.  The requirement is for the weld process to deposit a thickness of ½” (13mm) or greater. 

 

If you welding pipe or tube, you must also consider the groove weld diameter limits table, QW-452.3.

 

As an example,  I often want to qualify a welder to perform pipe welding with a GTAW root and hot pass  followed by FCAW to fill the joint.  Therefore, a 13mm coupon will not be sufficient to get unlimited thickness qualification for the FCAW process.  As I am satisfied with a minimum 2-7/8” (73mm) diameter qualification, I will use either a 6 inch – Schedule 160 or schedule XX coupon and specify that there be a minimum of ½ in. (13mm) of joint left unwelded after completion of the GTAW portion.  The welder will be qualified for 2t_GTAW  and unlimited for FCAW.

 

Note that corrosion resistant overlay, hard facing overlay, and temper bead welding have their own qualification rules.  Tube-to-tubesheet welding will be qualified unless demonstration or mock-up testing is required per QW-193 by Code section or customer specification.  {Section VIII, Division 2, Article F3 has been replaced by QW-193, QW-288, QW-303.5}

 

Let me know if you have additional questions.

 

John  

 

From: material...@googlegroups.com [mailto:material...@googlegroups.com] On Behalf Of Zakaria ghrab
Sent: Wednesday, March 09, 2011 11:14 AM
To: material...@googlegroups.com
Subject: [MW:10246] ASME IX - Welder's qualification Thickness range

 

Hi all,

--

[Martin Prad]

Dear Sir,
 
Your interpretation is true within the limits of your applicable qualified WPS. E.G. if your applicable WPS is qualified for max thickness 20 mm and your welder has welded 16 mm thk test coupon then the "Maximum to be welded" thikness is 20 mm.
 
Please note that you can not go beyond the applicable qualified WPS.
 
regards,
Martin.
 

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Date: Wed, 9 Mar 2011 17:13:49 +0000

Subject: [MW:10246] ASME IX - Welder's qualification Thickness range

From: zakari...@gmail.com
To: material...@googlegroups.com

[K.Babu]

Hi Martin

 

If that is the case , we can't qualify the welder for unlimited thickness as the WPS has not qualified for unlimited thickness ?

In my opinion , "Maximum to be welded" indicates the unlimited thickness.

 

Regards

 

K.Babu

 

 

2011/3/10 Martin Prad <marti...@hotmail.com>

[rinshad abdul rahman]

Dear Zakariya,

It is right but the welder should use the filler metal of same F number.

Regards 

Rinshad A

2011/3/9 Zakaria ghrab <zakari...@gmail.com>

[muthu barathi]

Dear Sir,
Your interpretation is correct and only condition is it shall be welded by using multi pass weld and not single pass weld. So dont confuse with the thickness and go ahead with 13 mm or greater and weld .




Thanking You,

Honesty is the best Policy

With Warm Regards,

Muthu Barathi P
Mobile No:00962788269821 (Jordan)
00962775401951

On Sat, 12 Mar 2011 21:52:14 +0530 "K.Babu" <kbab...@gmail.com> wrote

>

Hi Martin

 

If that is the case , we can't qualify the welder for unlimited thickness as the WPS has not qualified for unlimited thickness ?

>In my opinion , "Maximum to be welded" indicates the unlimited thickness.

 

Regards

 

K.Babu

 

> 

2011/3/10 Martin Prad <marti...@hotmail.com>
>

Dear Sir,
> 
>Your interpretation is true within the limits of your applicable qualified WPS. E.G. if your applicable WPS is qualified for max thickness 20 mm and your welder has welded 16 mm thk test coupon then the "Maximum to be welded" thikness is 20 mm.
> 
>Please note that you can not go beyond the applicable qualified WPS.
> 
>regards,
>Martin.
> 
>

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Date: Wed, 9 Mar 2011 17:13:49 +0000

>Subject: [MW:10246] ASME IX - Welder's qualification Thickness range
>

From: zakari...@gmail.com

>To: material...@googlegroups.com
>
>

[Elshan Feyzullayev]

Hi Babu,

I think Martin is correct on the thickness wise.
Please see as reference ASME IX 2001 QW 301.2.
If your WPS is qualified to do unlimited thickness and the test coupon which your welder has welded in fall to "inlimited thickness" category then the welder is qualified for "max to be welded" which means unlimited.

Your main reference should be the WPS which your welder is qualified to.

regards,
Elshan Feyzullayev.

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Date: Sat, 12 Mar 2011 22:17:29 +0800
Subject: Re: [MW:10295] ASME IX - Welder's qualification Thickness range
From: kbab...@gmail.com
To: material...@googlegroups.com
CC: marti...@hotmail.com

[John Henning]

Just to clarify:

 

The welder must work to a properly qualified WPS and PQR when taking his/her performance qualification test.  The welder must meet the requirements of this WPS with exception of permitted exclusions as stated in the Code (PWHT for example does not have to be done).

 

The welder’s qualified thickness range is independent of the performance test WPS used and is only based on the thickness of the deposited weld metal and the ranges of qualification per QW-452.1 (b).  You can also see this in the essential variables; QW-352 through QW-357, which have no base metal thickness requirements/restrictions.

 

So a welder can complete his performance qualification with a WPS limited to 1 inch (25mm) maximum base metal thickness on a material , say, ¾ inch (19mm) thick.  As long as he meets the other essential variables for the process (QW-352 through QW-357) he can weld to the maximum thickness stated on any other appropriate WPS.  He is not limited to a maximum of 2 inches deposit thickness based on the performance qualification base metal thickness.

 

Hope this helps – let me know if you have further questions.

 

John

[Sedat Özyürek]

Dear Friends,

What is the qualification thickness range as per ASME Sec. IX for the below ?

Process                           SMAW

Base Material Thickness   8mm

Pipe (Fixed)                     6 Inch

Filler Material                   F3 Rt / F4

Weld deposit thickness for each welding process ?

Welding Position              6G

Thanks

14 Mart 2011 Pazartesi 19:37:26 UTC+2 tarihinde John Henning yazdı:

[mub...@amcoweir.com]

Dear sedat,

Your qualified range would be as below(Bold text)

Regards,
M.K.Mubeen

From:        Sedat Özyürek <ozyure...@gmail.com>
To:        material...@googlegroups.com
Date:        05-09-13 06:52 AM
Subject:        Re: [MW:18575] ASME IX - Welder's qualification Thickness range
Sent by:        material...@googlegroups.com

---

Dear Friends,

What is the qualification thickness range as per ASME Sec. IX for the below ?

Process                           SMAW

Base Material Thickness   8mm...............................................................(2T)................16mm.
Pipe (Fixed)                     6 Inch............................................................. 2-7/8" and above.

Filler Material                   F3 Rt / F4

Weld deposit thickness for each welding process ?..................................(2t).................By considering groove weld and single process, Max deposit thickness shall be 16mm.
Welding Position              6G...................................................................Qualified to weld in all positions.

 

John

 

Hi Martin

 

 

Regards

 

K.Babu

 

2011/3/10 Martin Prad <marti...@hotmail.com>

From: zakari...@gmail.com

To: material...@googlegroups.com

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[Octane Mac]

Agreed with Mubeen.

For F-number, he is qualified to weld with 1, 2 and 3 with backing and 4 with or without backing.

Check the P-number qualification range also.

Octane

[haitham gary]

the qualification thickness range as per ASME Sec. IX : see QW-451.1 table it is depend to test coupon thickness if it is 8mm the thickness range 1.5mm to 16mm

 

Haitham A. Aouda

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From: Sedat Özyürek <ozyure...@gmail.com>
To: material...@googlegroups.com

Sent: Thursday, September 5, 2013 2:13 AM
Subject: Re: [MW:18575] ASME IX - Welder's qualification Thickness range

Dear Friends,

What is the qualification thickness range as per ASME Sec. IX for the below ?

Process                           SMAW

Base Material Thickness   8mm

Pipe (Fixed)                     6 Inch

Filler Material                   F3 Rt / F4

Weld deposit thickness for each welding process ?

Welding Position              6G

Thanks

14 Mart 2011 Pazartesi 19:37:26 UTC+2 tarihinde John Henning yazdı:

Just to clarify:

 

The welder must work to a properly qualified WPS and PQR when taking his/her performance qualification test.  The welder must meet the requirements of this WPS with exception of permitted exclusions as stated in the Code (PWHT for example does not have to be done).

 

The welder’s qualified thickness range is independent of the performance test WPS used and is only based on the thickness of the deposited weld metal and the ranges of qualification per QW-452.1 (b).  You can also see this in the essential variables; QW-352 through QW-357, which have no base metal thickness requirements/restrictions.

 

So a welder can complete his performance qualification with a WPS limited to 1 inch (25mm) maximum base metal thickness on a material , say, ¾ inch (19mm) thick.  As long as he meets the other essential variables for the process (QW-352 through QW-357) he can weld to the maximum thickness stated on any other appropriate WPS.  He is not limited to a maximum of 2 inches deposit thickness based on the performance qualification base metal thickness.

 

Hope this helps – let me know if you have further questions.

 

John

 

http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm

 
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.

[Shivtej Shete]

Hello,

Im actually curious about the ratio by which a Test Specimen is drawn from a Welded plate that is joined during Welder qualification test.

Means if we have given with a specific thickness and length, breadth Welded plate, then which size of test specimen to be produced from that jointed piece for Tension Test or guided bend test?

Help me with this.

[Lakshman Kumar B]

Hi refer to sec IX for no.of pieces and size of the pieces, accordingly we have to make the test pieces

Lakshman kumar.B
Project manager.
9440031459

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From: Shivtej Shete
Sent: ‎27-‎05-‎2016 10:53
To: Materials & Welding
Subject: [MW:24891] Re: 10246] ASME IX - Welder's qualification Thicknessrange

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[George Dilintas]

Rfr to fgr QW-462.2 & QW-462.3(a) and to the relevant foot notes

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A.I.S, A.N.I, IRCA Lead Auditor

Welding, Stress Analysis, Corrosion, QA/QC, Failure Analysis, Risk Analysis

[Mohamed Idrish]

Hi

Procedure qualification / Welder qualification

What is the different between Thickness Sec IX , API1104 & D1.1

[Renjith]

Thanks for your answer.

I have a doubt, 13 mm thicknes Pipe welded by GTAW+SMAW, as per code minimum 3 layes are requied so if GTAW 2 pass and SMAW also 2 pass , so he cannot weld unlimited thickness na?

[james gerald]

Dear, welding process is an essential variable for welder qualification.hence NO

Thanks & Regards

J.Gerald Jayakumar

0091-9344954677

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[Lakshmankumar Bayyana]

Yes,

In such case welder is not qualified for unlimited thickness.

The welder should deposit minimum 13 mm thickness of weld metal in one single process 

Thanks and Regards

Lakshmankumar B

9440031459

Sent from my iPhone

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