ASTM B928 5083-H116 Marine Aluminum Plate
ASTM B928 5083-H116 marine aluminum plate is a high-magnesium aluminum alloy flat product intended for marine and similar environments. The H116 temper is ordered where the design requires controlled processing and resistance to exfoliation/corrosion behavior covered by the applicable specification. SASA ALUMINUM reviews each inquiry against the drawing, standard edition and project inspection requirements.
5083-H116 Marine Aluminum Plate Specification
| Item | Purchase information |
|---|---|
| Alloy / UNS | 5083 / UNS A95083 |
| Temper | H116 |
| Standard | ASTM B928/B928M; customer-specified equivalent subject to review |
| Product form | Flat plate / cut-to-size plate |
| Surface | Mill finish; protective film or project-specific surface subject to confirmation |
| Dimensions | Thickness, width, length and tolerances confirmed against the inquiry |
| Documentation | MTC, heat/lot traceability, marking and inspection documents as ordered |
The current project specification controls acceptance. Buyers should identify the required edition of ASTM B928/B928M or provide the applicable contractual standard.
Material Characteristics
- Non-heat-treatable 5xxx-series alloy strengthened through strain hardening and controlled temper processing.
- Selected for welded marine structures and exposure to marine or similar environments.
- Good fabrication potential when forming and welding procedures are qualified for the actual thickness and design.
- Final suitability depends on stress, temperature, environment, joint design and governing marine or structural rules.
Fabrication and Welding Review
Cutting method, bend radius, rolling direction, joint preparation, filler selection, welding procedure and distortion control should be defined by the fabricator. Mechanical properties in the heat-affected zone may differ from the parent plate. Engineering approval is required for substitutions between H116, H321 and other tempers.
Inspection and Quality Documents
- Chemical composition and mechanical test results against the ordered specification.
- Dimensional, flatness and visual surface inspection.
- Corrosion-related testing or acceptance criteria when required by ASTM B928/B928M and the purchase order.
- Heat/lot traceability, MTC type and third-party inspection as specified.
Typical Applications
5083-H116 plate is commonly evaluated for ship hull structures, decks, superstructures, patrol and work boats, offshore modules, coastal equipment and welded marine assemblies. These examples are not design approval; the responsible engineer must confirm alloy, temper, thickness and applicable classification rules.
Product Packaging
Plate surfaces and edges are protected according to the confirmed shipment method. Export packing may use moisture barriers, protective board, steel straps and reinforced wooden supports. Package weight, lifting points and container limitations should be agreed before production.
Test Report
Frequently Asked Questions
Is H116 the same as H321?
No. They are separate temper designations with different processing routes. Do not substitute one for the other without drawing and engineering approval.
What information is needed for quotation?
Send the standard edition, thickness, width, length, quantity, temper, tolerances, surface, corrosion-test requirements, MTC, inspection and packing requirements.
Can the plate be supplied cut to size?
Cut dimensions and tolerances can be reviewed against the inquiry. Confirm whether allowance is required for machining, forming or edge preparation.
Send your drawing or purchase specification so SASA ALUMINUM can review alloy, temper, dimensions, inspection and documentation before quotation.
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