68 Questions
What is the maximum aging temperature for the procedure qualification test assembly?
100°C
Where should all welding of procedure qualification test assemblies be performed?
In the company's plant or site
Under what conditions may welding of a procedure qualification assembly be performed at other locations?
With company discretion and CWB approval
Which tests are considered mandatory for soundness testing?
Visual examination, bend tests, and macro-etch test
What is the mandatory mechanical test for procedure qualification?
Reduced section tension test
Which mechanical test is considered optional for procedure qualification?
Charpy V notch (CVN) impact test
When is requalification required for PQR mechanical test essential variable changes?
For various processes
What must soundness and mechanical tests follow when required?
Specific test requirements
What must the range of thickness and/or diameter and/or fillet weld sizes conform to for qualifying a WPDS?
Specified tables
What are the essential variables for robotic arc welding qualification?
Specified
Is a procedure qualified by semi-automatic process considered valid for robotic welding operations?
Yes
What is the maximum aging duration for the procedure qualification test assembly?
48 hours
What is an acceptable approach for completing welding procedure qualification tests?
On separate test assemblies or a combined single test assembly, with consideration for essential variables
Where can macro-etch acceptance criterion tests be performed?
On any steel within its group for soundness tests
What can be used for PQR instead of specified test assemblies?
Alternative production test assemblies
When must visual examination of complete welded test assemblies meet specific acceptance criteria?
Immediately after cooling
In addition to immediate visual inspection, when should an additional inspection be done for certain steels?
At least 48 hours after completion
What must radiographic/ultrasonic examination procedures and techniques comply with?
CSA W59
How must bend test specimens be prepared and bent?
According to specific figures and jigs
Where must bend test specimens be bent?
About the center of the weld
When may longitudinal bend tests be used in lieu of transverse tests?
When material combinations differ in mechanical properties
What must convex surface bend test specimens be visually examined for?
Surface discontinuities
What is the title of the document related to the content?
CSA W47.1:19 Certification of Companies for Fusion Welding of Steel
What must companies use for welding consumables according to the requirements of CSA W48?
Certified welding consumables by the CWB
Under what conditions may non-certified electrodes or combinations of electrodes/fluxes or electrodes/shielding gases be used?
If conditionally qualified under the appropriate CSA or AWS electrode standard
When is the conditional electrode qualification witnessed by the CWB valid?
Only for the company performing the qualification
In what situations does Clause 11.8.2 b) apply?
When the electrode or electrode/flux or electrode/shielding gas combinations have not been submitted by the manufacturer to the CWB for approval
What is required for the approval of electrodes or combinations of electrodes/fluxes or electrodes/shielding gases as part of the PQR?
Successful completion of mandatory soundness and mechanical tests specified in Table 10
When may the approval of electrodes or combinations of electrodes/fluxes or electrodes/shielding gases be valid?
Only for the type and geometry of the joint and base metal specification grade used in the PQR assembly
Under what conditions may longitudinal bend tests be used in lieu of transverse tests?
When specified in the applicable joint type
What should be done if an all-weld-metal tension specimen can be removed from the original joint geometry of the PQR test assembly?
The length of the PQR test assembly should be extended beyond that shown in Figure 22
What is required if an all-weld-metal tension specimen is needed?
Refer to Figure 34
When is requalification required for PQR mechanical test essential variable changes?
When the essential variables related to PQR mechanical tests change
What is the title of the document related to the content?
CSA W47.1:19
What is the maximum acceptance criteria for discontinuities on the surface in any direction?
3mm
How many transverse sections of the weld are required to be cut, polished, and etched for macro-etch test specimens of partial joint penetration and fillet weld test assemblies?
Two
What visual inspection requirements are specified for macro-etched test specimens?
Fusion to the root of the joint, leg size conformity, actual effective throat thickness, and absence of cracks and undercut
How many transverse sections of the weld are required to be cut, polished, and etched for plug and slot test assemblies?
Four
When are retests for soundness tests mandated?
If the visual examination fails to meet the acceptance level
What type of test specimens are used for mechanical tests?
Reduced section tension test specimens
Under what conditions may individual reduced section tension test specimens be cut into multiple specimens?
For thicknesses over 38mm
When are retests for mechanical tests allowed?
If the reduced section tension test specimens fail to meet the test requirements
What is addressed in the text regarding welding consumables?
Welding consumables are addressed in the text
What type of document is the text part of?
A larger document with specific references to the date and licensing information
What is the primary purpose of the requirements outlined in the text?
Ensuring the quality and integrity of the welding processes and materials
Who is responsible for performing mechanical testing and evaluation of the specimens?
An ATO certified to CSA W178.1 for mechanical testing
What is the purpose of a procedure qualification record (PQR)?
To list essential variable information recorded during welding and test results
When conducting a PQR according to another recognized specification or standard, what limitation should be considered?
It shall be limited by the range of validity specified in that specification or standard, but also satisfy the essential variables listed in CSA W47.1:19
Who can witness the bending of test specimens, and who is responsible for their evaluation?
The bending may be performed by the company, but the evaluation shall be performed by the CWB
What is the maximum specified size for discontinuities on the surface in any direction?
3mm
How many transverse sections of the weld are required for macro-etch test specimens for partial joint penetration and fillet weld test assemblies?
2
What are the visual inspection requirements for macro-etched test specimens?
Fusion to the root of the joint, leg size conformity, actual effective throat thickness, and absence of cracks and undercut
How many transverse sections of the weld are required for plug and slot test assemblies?
4
When are retests for soundness tests mandated?
If the visual examination fails to meet the acceptance level
What type of mechanical tests include reduced section tension test specimens?
Tensile strength tests
For thicknesses over 38mm, what may be done with individual reduced section tension test specimens?
Cut into multiple specimens
When are retests for mechanical tests allowed?
If the reduced section tension test specimens fail to meet the test requirements
What is addressed in the text regarding welding consumables?
Welding consumables are addressed, but specific details are not included in the summary text provided
What is essential for understanding the testing and inspection criteria according to the text?
References to specific figures and visual representations
What does the text indicate about the nature of the requirements outlined?
They are detailed and specific, ensuring the quality and integrity of the welding processes and materials
What organization can perform mechanical testing and evaluation of the specimens for a procedure qualification record (PQR)?
A welding inspection organization certified to CSA W178.1 for mechanical testing
Who is responsible for the evaluation of the bending test specimens for a procedure qualification record (PQR)?
The CWB
What is the role of the CWB in the welding of test assemblies for a procedure qualification record (PQR)?
To witness the welding of the test assemblies
What is the requirement for the range of validity of a PQR conducted in accordance with another recognized specification or standard?
It shall be limited by the essential variables specified in that specification or standard, but also satisfy the essential variables listed in CSA W47.1:19
What organization should witness the mechanical testing and evaluation of the specimens for a welding procedure qualification record (PQR)?
A welding inspection organization certified to CSA W178.1 for mechanical testing
Under what conditions may the approval of electrodes or combinations of electrodes/fluxes or electrodes/shielding gases be valid for a welding procedure qualification record (PQR)?
If the essential variables listed in the standard for the given welding process are satisfied
Who is responsible for the evaluation of bend test specimens for a welding procedure qualification record (PQR)?
The Canadian Welding Bureau (CWB)
Where should all welding of procedure qualification test assemblies be performed?
In the presence of the CWB's representative
Study Notes
Welding Test and Inspection Criteria
- Acceptance criteria for discontinuities on the surface are specified: 3mm maximum in any direction, 10mm for the sum of discontinuities exceeding 1mm but less than or equal to 3mm, and 6mm for maximum corner crack, with exceptions.
- Macro-etch test specimens for partial joint penetration and fillet weld test assemblies require two transverse sections of the weld to be cut, polished, and etched to reveal the weld fusion boundary.
- Visual inspection requirements for macro-etched test specimens include fusion to the root of the joint, leg size conformity, actual effective throat thickness, and absence of cracks and undercut.
- For plug and slot test assemblies, four transverse sections of the weld are cut, polished, and etched to reveal the weld fusion boundary, with specific visual inspection requirements.
- Retests for soundness tests are mandated if the visual examination fails to meet the acceptance level, with different procedures based on the type of test specimen.
- Mechanical tests include reduced section tension test specimens, with specific preparation and tensile strength requirements based on base material and filler metal strength.
- For thicknesses over 38mm, individual reduced section tension test specimens may be cut into multiple specimens, with averaged tensile strength results required.
- Retests for mechanical tests are allowed if the reduced section tension test specimens fail to meet the test requirements, with specific procedures for material over 38mm thick.
- Welding consumables are addressed in the text, but the specific details are not included in the summary text provided.
- The text includes references to specific figures and visual representations that are essential for understanding the testing and inspection criteria.
- The text is part of a larger document with specific references to the date and licensing information, indicating its official and regulated nature.
- The requirements outlined in the text are detailed and specific, ensuring the quality and integrity of the welding processes and materials.
Test your knowledge of welding procedure qualification tests and acceptance criteria with this quiz. Explore the essential variables, acceptance criteria for discontinuities, visual inspection requirements, macro-etch tests, retest procedures, mechanical tests, and more, all based on the CSA W47.1:19 Certification of Companies for Fusion Welding of Steel.
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