For ASME, which tests are used in destructive testing?

For ASME, which tests are used in destructive testing?

• A. Bends and tensiles
• B. Charpy impact only
• C. Nick breaks
• D. Visual inspection only

Answer: (A)

Destructive testing in ASME weld qualification focuses on proving a weld can actually carry load by breaking a specimen to reveal any hidden defects. The standard tests used for this purpose are bending and tensile tests. The tensile test examines the weld joint under pulling force until it fractures. By testing a specimen that includes the weld, you measure properties like yield strength, ultimate tensile strength, and elongation. This shows whether the weld metal and heat-affected zone will perform as needed under service loads. The bend test places the welded specimen under a bending deformation to see if cracks form and to check the continuity of fusion across the weld as well as the surrounding material. It stresses the weld in a way that can reveal lack of fusion, porosity, or other defects that might not be evident in a simple tension test, especially around the weld throat. Charpy impact tests are indeed destructive, but they are not universally required for every ASME weld qualification; they’re specified only for certain materials or service conditions to assess toughness. Visual inspection alone is non-destructive, so it doesn’t fall under destructive testing. So the tests most commonly used to destructively verify ASME welds are the bend test and the tensile test, making them the best answer here.

Destructive testing in ASME weld qualification focuses on proving a weld can actually carry load by breaking a specimen to reveal any hidden defects. The standard tests used for this purpose are bending and tensile tests.

The tensile test examines the weld joint under pulling force until it fractures. By testing a specimen that includes the weld, you measure properties like yield strength, ultimate tensile strength, and elongation. This shows whether the weld metal and heat-affected zone will perform as needed under service loads.

The bend test places the welded specimen under a bending deformation to see if cracks form and to check the continuity of fusion across the weld as well as the surrounding material. It stresses the weld in a way that can reveal lack of fusion, porosity, or other defects that might not be evident in a simple tension test, especially around the weld throat.

Charpy impact tests are indeed destructive, but they are not universally required for every ASME weld qualification; they’re specified only for certain materials or service conditions to assess toughness. Visual inspection alone is non-destructive, so it doesn’t fall under destructive testing.

So the tests most commonly used to destructively verify ASME welds are the bend test and the tensile test, making them the best answer here.