Which two tests are always required for qualifying a new weld procedure?

Which two tests are always required for qualifying a new weld procedure?

• A. guided bend test and tensile test
• B. radiographic examination and ultrasonic test
• C. impact test and hardness test
• D. visual inspection and bend test

Answer: (A)

In welding procedure qualification, you need to prove that the weld joint formed by the new procedure will meet the required strength and ductility. The two tests used to do this are the tensile test and the guided bend test. The tensile test pulls a welded coupon to failure to verify the weld’s strength and ductility, ensuring the joint can carry the intended loads. The guided bend test then bends a portion of the weld in a controlled way to check for cracks or lack of fusion in the weld and heat-affected zone, simulating service deformation and confirming soundness. Nondestructive tests like radiography or ultrasonics aren’t universally required for every procedure qualification; they may be mandated in some codes or for certain materials but aren’t the standard pair always required. Likewise, impact or hardness testing is material- and service-condition dependent, and visual inspection, while important, isn’t a test that alone qualifies the procedure.

In welding procedure qualification, you need to prove that the weld joint formed by the new procedure will meet the required strength and ductility. The two tests used to do this are the tensile test and the guided bend test. The tensile test pulls a welded coupon to failure to verify the weld’s strength and ductility, ensuring the joint can carry the intended loads. The guided bend test then bends a portion of the weld in a controlled way to check for cracks or lack of fusion in the weld and heat-affected zone, simulating service deformation and confirming soundness.

Nondestructive tests like radiography or ultrasonics aren’t universally required for every procedure qualification; they may be mandated in some codes or for certain materials but aren’t the standard pair always required. Likewise, impact or hardness testing is material- and service-condition dependent, and visual inspection, while important, isn’t a test that alone qualifies the procedure.