Metal Fabrication and Welding Quality Affidavit

What a good one includes

• Identifies the specific project, job site location, fabricator, and client to ensure the document is legally tied to the correct work.
• Explicit references to the exact welding codes governed, such as AWS D1.1 for structural steel or ASME Section IX for pressure vessels.
• A statement of the welder's certifications, including their specific qualifications and the certifying body, to prove competent hands did the work.
• Detailed specifications of the base metals and welding electrodes or filler wires used, demonstrating metallurgical compatibility and strength.
• A clear description of the testing and inspection methods used to verify the welds, whether visual inspection, dye penetrant, or magnetic particle testing.
• A formal notary jurat and signature block, transforming the document from a simple workshop report into a sworn, legally binding affidavit.

Common mistakes to avoid

• Referencing a general body like the American Welding Society without citing the exact, specific code standard and edition that applies to the structural work.
• Failing to link the affidavit to the specific mill test reports or heat numbers of the steel used during fabrication.
• Forgetting to include a formal notary block, which strips the document of its status as a sworn legal affidavit in the eyes of municipal inspectors.
• Neglecting to define the precise scope of work, leaving you potentially liable for welds completed by other contractors on the same job site.

Frequently asked questions