Weld Inspection and Testing
The following tests by Independent Inspection Agency may be required for your welding program:
- Visual Inspection by AWS Certified Welding Inspector (CWI)
- Radiographic Testing by Level II personnel certified as per SNT-TC-1A
- Ultrasonic Testing by Level II personnel certified as per SNT-TC-1A
- Magnetic Particle Testing by Level II personnel certified as per SNT-TC-1A
- Penetrant Testing by Level II personnel certified as per SNT-TC-1A
Acceptance Standards
In general welds must show a neat workman like appearance. The root must be fully fused along the entire length of the weld, the profile of the cap should blend in smoothly with the parent material and the weld should be significantly free from imperfections. Reference should be made to the acceptance standard for precise details.
Documentation
The necessary documents for a successful Welding Program are as follows:
- Welding Procedure Specification (WPS), Procedure Qualification Record (PQR), Independent Laboratory Test Report for the PQR, Welder Performance Qualification Record (WPQR), and Independent Laboratory Test Report for the WPQR; OR
- Pre-qualified Welding Procedure Specification (Applicable to some Codes only), Welder Performance Qualification Record (WPQR), and Independent Laboratory Test Report for the WPQR; OR
- Code adopted Standard Welding Procedure Specification (SWPS), Welder Performance Qualification Record (WPQR), and Independent Laboratory Test Report for the WPQR
PQR/ WPQR Testing
The following tests by Independent Test Laboratory may be required on your PQR and WPQR Coupons:
- Weld Visual Examination by a AWS Certified Welding Inspector
- Bend Test
- Hardness Test
- Transverse Tensile Test
- All Weld Metal Tensile Test
- Charpy Impact Test
- Weld Metal Chemical Analysis
- Macroetch Test
- Torque Test
- Peel Test
- Nick Break Test
- Radiography Test
- Ultrasonic Test
AEIS can perform all of the above tests in-house at its state-of-art facilities.
