High Magnesium Aluminum Alloy
Excellent Corrosion Resistance & Weldability
Ideal for Marine & Heavy-Duty Structures
Source 5083 aluminum sheet and plate by temper, dimensions and project specification. For marine fabrication or welded structures, confirm the required material condition and inspection documents before comparing quotations. Voyage Metal reviews standard and custom-size requirements for each order.

| Ordering item | What to specify |
|---|---|
| Product | 5083 aluminum sheet or plate. State the required product form and thickness. |
| Temper | O, H111, H112 or H116, subject to the applicable thickness and specification. If your project specifies another condition, include it for review. |
| Dimensions | Send thickness × width × length in mm, or a dimensioned drawing. Standard and custom-size availability is confirmed per order. |
| Tolerance | Specify thickness, width, length and flatness requirements. Include the standard or drawing tolerance rather than relying on nominal size alone. |
| Surface | State the required mill surface or finishing specification. Anodizing, coating, embossing and protective-film requests require separate feasibility confirmation. |
| Standard | Identify the exact product standard and edition. ASTM B209/B209M and ASTM B928/B928M address different purchase requirements; the applicable specification must be agreed for the order. |
| Documents & packing | Specify MTC, third-party inspection, certificate of origin and standard export or custom packing requirements. Scope and availability are confirmed before order acceptance. |
For marine service, the grade name alone does not establish compliance. Include the required temper, testing and any classification-society requirements in your inquiry. Certification is not implied by this product description.
| Application | Confirm before ordering |
|---|---|
| Marine structures | For specified hull, deck or other marine plate work, confirm the design specification, temper, corrosion-test requirements and inspection documents. |
| Transportation fabrication | For rail and vehicle components, provide the drawing, forming requirements, weld details and dimensional tolerances. |
| Welded industrial structures | For structural or vessel components, the responsible designer must approve the grade, service conditions and applicable fabrication code. |
These are application examples, not approval for a particular design. Corrosion performance depends on the service environment and material condition. Welding can reduce strength in the heat-affected zone, which must be considered in design.
No. 5083 is a non-heat-treatable alloy. Use the required O or H temper from the applicable specification rather than a T6 designation.
Do not choose a temper from the word “marine” alone. Send the project specification, thickness and testing requirements so that the material condition and documents can be reviewed together.
Yes, submit the finish specification for review. State the appearance, coating and service requirements. Do not assume a decorative finish or a particular corrosion-performance result without confirming the process and acceptance criteria.
Send a drawing or thickness × width × length, tolerances, quantity, temper and intended application. Include edge and surface requirements where they affect the finished part.
Include grade, temper, thickness × width × length, tolerance, surface, quantity, standard and document requirements, packing, application and destination. Our team will review the details before providing a quotation.