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Marine and aluminum fabrication

Marine fabrication builds boat parts, towers, rails, docks, and port equipment that live in salt air and water.

Five-step flow diagram of a typical marine and aluminum fabrication job: Measure or template, Design for corrosion, Cut and form aluminum, TIG or MIG weld, Finish and fit on board.

Materials and processes

Marine aluminum alloys such as 5052, 5083, and 6061, and 316 stainless steel. Galvanic corrosion between dissimilar metals is a constant design concern.

Standards and certifications to know

  • AWS D1.2: the structural welding code for aluminum.
  • ABS class rules: the American Bureau of Shipping publishes rules for classed vessels and offshore structures.
  • U.S. Coast Guard requirements: apply to many commercial vessels and their equipment.

Questions to ask a shop

  • Does the shop weld aluminum daily, with welders qualified to AWS D1.2?
  • How does it isolate dissimilar metals to prevent galvanic corrosion?
  • Has it worked to ABS or Coast Guard requirements?
  • Can it work on-site at a marina, yard, or terminal?

What drives cost

Aluminum welding skill, access to the vessel, corrosion protection, and class or inspection paperwork drive cost.

Metros with strong local demand

Questions

What should I look for in a marine and aluminum fabricator?

Relevant certifications, finished work similar to yours, the right equipment, and clear documentation. Start with: Does the shop weld aluminum daily, with welders qualified to AWS D1.2?

Where is marine and aluminum fabrication concentrated?

On this site, these metros have strong local demand: Baltimore, MD, Cincinnati, OH, Cleveland, OH, Detroit, MI, Green Bay, WI, Houston, TX, Jacksonville, FL, Los Angeles, CA, Miami, FL, Boston, MA, New Orleans, LA, Philadelphia, PA, Pittsburgh, PA, Seattle, WA, Tampa, FL.