What should be done if the welding method is not qualified under the applicable code?

When a welding method is not qualified under the applicable code, it is imperative to revise and then properly qualify the method. Codes and standards exist to ensure the safety and integrity of welded components, especially in critical applications. Without a proper qualification, there is a risk of failure or subpar performance that could lead to serious safety issues.

Revising the method typically involves making necessary adjustments to the welding parameters, techniques, or materials used, and then conducting thorough tests to validate the new approach against the established code requirements. This qualification process typically includes a series of tests such as tensile, bend, or impact tests to ensure that the weld meets all necessary mechanical properties.

The reasons for not employing the unwarranted method—such as using it with caution or not testing it—are rooted in the acknowledgement that without code qualification, safety could be compromised, and liability could arise in case of failure. Therefore, the only responsible course of action is to revise the welding method and ensure it meets the required standards before it is put into use.