What are the test required for PQR?
What are the test required for PQR?
For any PQR, normally two tension tests, two root face bend test and two face bend test is required. The acceptance criteria have been provided in the ASME Code Section IX.
How is a WPS qualified?
The Welding Procedure Qualification Record is the document that qualifies the Welding Procedure Specification. In order to qualify your WPS, a procedure qualification plate is welded the code requirements. The actual test parameters are recorded at the time of welding to ensure the WPS was being followed.
What are the 3 main mechanical tests required for procedure performance qualification?
NON-DESTRUCTIVE TESTS
- Visual Inspection (VT)
- X-ray Inspection (RT)
- Dye Penetrant (PT)
- Ultra-sound Inspection (UT)
- Mag Particle Inspection (MT)
What is procedure qualification record?
Procedure qualification record (PQR) is a supporting document of welding procedure specification (WPS), that is used to record all real-time actual welding parameters variables data during the Welding procedure specification (WPS) or welding of test coupon.
How do you write a WPS welder?
Basic Information:
- Name of the company and person who developed it.
- Specification number and date.
- Most WPS will be backed on a PQR (Procedure Qualification Record), you should refer to it in order to make it easy to trace the document back.
- Number and date of the last revision.
- Welding processes and type.
Who can approve WPS?
Anyone can write a WPS (though the SCWI is the only one of the three who is required to have that ability as a Certified Inspector), a company rep, the welder, a CWI, a SCWI, BUT NOT THE CAWI.
Why WPS and PQR are important?
WPS serves as a blueprint for a written instruction or guide on how to create a welded product based on a certain standard and quality. Meanwhile, PQR is a document that checks whether the standard is being followed by inspecting and answering the document regarding specific areas and tests.
What is Pqr in welding?
A Procedure Qualification Record (PQR) is the record of the actual weld test parameters used.It is the founding document as far as procedures are concerned and is used to produce welding procedure specification sheets (WPS) for production welds.
Which type of tests are conducted by WPS to test welders performance?
How the performance qualification test is carried out? The welder is asked to weld a test coupon in accordance with the qualified welding procedure specification (WPS), then visual inspection and LPI/MPI (if applicable) are carried out as per the approved procedure.
How to prepare Welding Procedure Specification (WPS)?
Prepare the Procedure qualification record ( PQR) listing out all the variables ( Essential, Non-essential & supplementary) for the welding process used. Prepare the Welding Procedure Specification ( WPS ) with ranges qualified. For the welder performed the PQR qualification test prepare the Welder certificate.
What are the tests required for PQR and WPS?
Tensile test and bend test are the minimum tests required as per ASME Section IX for PQR qualification. It is to be noted that NDT such as Radiographic testing is not a mandatory requirement for WPS qualification.
What does PQR stand for in welding?
Procedure Qualification Records (PQR) All WPSs start with a PQR. It is a record of the test. It DOES NOT have any ranges. It lists the actual values recorded during the welding of a test piece. It proves the welding process.
How to qualify a welding procedure?
A welding procedure must be qualified in accordance with the requirements of an appropriatewelding procedure standard, such as ASME Sec IX, as follows:1. Produce a welding procedure specification (WPS) as stated above.2. Weld a test piece in accordance with the requirements of your specification.