This page calculates the approval range for both welding procedures and welder approvals. It was developed for groove welds but fillet welds follow the same basic rules except parent metal thickness is not considered, but welding positions for performance qualification should be correct and also diameter limits.{Note Diameter limits don't apply to fillet welds if qualified by a groove weld}
Enter test piece data above horizontal line. Click the 'Calculate
Approval Range' button and the range of approval will
appear below it.