Welding Qualification Test. In Europe the European Committee for Standardization CEN has adopted the ISO standards on welder qualification ISO 9606 to replace the old European EN 287 series. Shielded metal arc welding direct current electrode positive Electrode.
The acceptance criteria have been provided in the ASME Code Section IX. To use 50W material to qualify welding of grades 36 50 50S and 50W the test plate must have a minimum 015 carbon Clause 542 or a minimum carbon equivalent CE of 045 with the carbon not less than 012. Individual welders are certified with a qualification test documented in a Welder Qualification Test Record WQTR that shows they have the understanding and demonstrated ability to work within the specified WPS.
It focuses on areas that tend to cause the most weld failures while illustrating how to correct them.
In Europe welder qualifications are determined in accordance with EN ISO 9606 or ISO 14732. Practice every type of welding methods metals thickness and all body positioning working space clearance and weather conditions you could be tested on. It focuses on areas that tend to cause the most weld failures while illustrating how to correct them. All the real-time data during welding of test coupon and destructive test report data is compiled into one document known as Procedure qualification record PQR.