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Re: Re: [MW:7960] No of Welders

By Materials & Welding
Dear Dr.Paulose John,
       As per your statement in SEC IX QW 301.2 and API 1104 para 6.2.1 it has been not mentioned regarding the minimum number of welder to be qualified by one WPS 
 

QW-301.2 Qualification Tests. Each manufacturer or

Contractor shall qualify each welder or welding operator

For each welding process to be used in production welding.

The performance qualification test shall be welded in accordance

With qualified Welding Procedure Specifications

(WPS),

6.2.1 General (API 1104)

For single qualification, a welder shall make a test weld

Using a qualified procedure to join pipe nipples or segments

Of pipe nipples. The welder shall make a butt weld in either

The rolled or the fixed position. When the welder is qualifying

In the fixed position, the axis of the pipe shall be in the horizontal

Plane, in the vertical plane, or inclined from the horizontal

Plane at an angle of not more than 45°.

A welder making a single-qualification test for branch connections,

Fillet welds, or other similar configurations shall follow

The specific procedure specification.

Sir please clarify.
 
 
Here By,
 
P.BalajiRajan,
Inspection Engineer,
Velosi Certification LLC,
P.O 3408 Doha-Qatar.
-------Original Message-------
 
Date: 10/30/2010 7:57:30 PM
Subject: Re: Re: [MW:7943] No of Welders
 
Dear Mr. Arun,

Minimum number of welders to be qualified by one WPS is - One welder. The welder who performs the PQR coupen welding is automatically becomes qualified. Please refer 2nd para of QW 301.2 of Section IX:2010 and para 621 of API 1104:2007.

Regards,
Dr. Paulose John
QA/QC Manager,
Unisis Engineering,
Saudi Arabia
.
On Sat, 30 Oct 2010 14:15:07 , No ID Specified wrote
To my knowledge there is no limit for number of welder qualification  upon one WPS, You can qualify as many as per to the requirement for your project. 
 
 
 
Here By,
 
P.BalajiRajan,
-------Original Message-------
 
From: Arun Das
Date: 10/28/10 17:39:52
Subject: [MW:7911] No of Welders
 
Sir,
 
Minimum number of welders to be qualified upon one WPS is mentioned in SEC 1X or API 1104.
We are using PIPE,16"X0.375"WT STD SCH API 5L X52
 
Thanks in advance
 
with regards,
 
Arun S Das

 

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