What results are required for a successful FW classification test?

• A. Visual inspection plus the required mechanical test results.
• B. Only visual inspection.
• C. Only a single tensile test.
• D. No tests are required.

Answer: (A)

Successful FW classification relies on both the visual assessment and the mechanical performance data required by the standard. The visual inspection checks the weld’s surface quality, geometry, and absence of defects that are visible on the outside. But surface checks alone can miss internal flaws or insufficient material properties. The mechanical test results verify that the weld can meet the required strength, ductility, and other performance criteria specified for the classification. Only when both the visual criteria are satisfied and the mechanical test results meet the acceptance limits is the FW classification test considered successful. Relying on visual inspection alone or on a single test does not provide the full assurance of quality and performance.