MARINE ALUMINIUM FOR SHIPBUILDING & REPAIR
Marine Aluminium 5083 & 5086
Grade-, temper- and certificate-controlled sourcing for plate, sheet, profiles and fabricated marine components.
MNK-G.S.A coordinates sourcing of AA / EN AW-5083 and 5086 marine aluminium by exact alloy, temper, product form, thickness, width, length, certification, class or project requirements, cutting and delivery destination.
Alloy Number Alone Does Not Define Marine Suitability
5083 or 5086 must be ordered together with the required temper and product specification. H111, H116, H321 and other conditions are not interchangeable labels: strength, corrosion-testing requirements, formability, welding procedure and class approval must match the vessel or project specification.
Material Definition and Supply Scope
5083-H111
General marine and fabrication plate or sheet supplied under the agreed standard, dimensions and inspection requirements. It is not automatically equivalent to H116 or H321.
5083-H116 / H321
Marine plate and sheet conditions used where the governing specification requires defined strength and resistance to sensitisation, exfoliation or intergranular corrosion.
5086 Marine Aluminium
A weldable Al-Mg marine family available in selected sheet, plate, tread plate and fabrication forms. The exact temper and product standard are confirmed for each RFQ.
Sheet, Plate and Cut Blanks
Full sheets, plates, strips, discs and cut-to-size blanks can be sourced with alloy, temper, rolling direction, surface, flatness and edge requirements stated.
Profiles and Structural Sections
Marine profiles, stiffeners, flat bars, bulbs, T-sections, tubes and custom extrusions are sourced by approved drawing and applicable extrusion specification.
Fabricated and Welded Packages
Cut kits, formed parts, friction-stir-welded panels, aluminium–steel transition joints and matching filler-metal packages are coordinated under the approved fabrication route and WPS.
Typical Global Manufacturing Capability
Hulamin 5083-H116 / H321
Hulamin publishes a marine-plate programme for the two listed tempers. Width, length, dimensional combinations and required approvals must be confirmed for the inquiry.
Brochure listed thickness range: 3–32 mm Hulamin 5083-H116 / 5083-H321 marine plate; Hulamin. Product size range in the undated brochure; not a dimensional tolerance, class approval or confirmation of current stock. Source: Hulamin - Marine 5083 brochure (Undated brochure; PDF page 2; checked 2026-10-13, p. 2, Sizes available). Reviewed: 2026-10-13.
Common 5083-H111 Sheet Formats
Geier lists these EN AW-5083 H111 width × length formats at selected thicknesses: 1000 mm × 2000 mm; 1250 mm × 2500 mm; 1500 mm × 3000 mm. Confirm the complete row, not arbitrary combinations. Source: Geier - EN AW 5083 H111 plate formats (Undated supplier table; selected format rows checked 2026-10-19, p. EN AW 5083 H111 table: 1000 x 2000 mm format rows).
A separate Alumeco H111 example, material 1000396 (thickness × width × length): 8 mm × 2000 mm × 6000 mm. Source: Alumeco - EN AW-5083 H111, material 1000396 (Undated product page; material 1000396 dimensions checked 2026-10-19, p. Material 1000396, product dimensions).
These are catalogue examples, not current stock or blanket marine approval. Other formats, exact temper and certification are confirmed in the quotation.
5083-H111 Rolled Plate
thyssenkrupp Materials Austria lists the following rolled-plate thickness. This is a separate supplier programme, not a combined maximum for marine aluminium.
Published rolled-plate thickness: 4–150 mm EN AW-5083 / AlMg4.5Mn0.7 H111 rolled plate; thyssenkrupp Materials Austria. Supplier programme example for rolled H111 plate only; not cast plate or H116/H321. Confirm dimensions, stock and marine certification separately. Source: thyssenkrupp Materials Austria - Aluminium-Saegezuschnitte (2023 in filename; PDF p. 3, EN AW-5083 H111 rolled plate; checked 2026-10-19, p. 3, EN AW-5083 / AlMg4.5Mn0.7 H111, Walzplatte). Reviewed: 2026-10-19.
5086 Sheet and Tread Plate
Alumeco material 1015968: EN AW-5086 H244, Quintet pattern, primed. Base thickness: 3 mm; thickness including pattern: 3.7 mm; width × length: 2500 mm × 8000 mm.
One complete catalogue item, not a universal 5086 format or guarantee of stock/class approval. Source: Alumeco - EN AW-5086 H244 tread plate, material 1015968 (Undated product page; material 1015968 dimensions checked 2026-10-19, p. Material 1015968, product dimensions).
Profiles and Long Components
Standard marine profile catalogues contain many section-specific combinations. Custom extrusions and long panels are reviewed separately because section geometry, press size, joining route and transport determine maximum length.
No Synthetic Maximum
A maximum thickness from H111 plate and a maximum length from thin H116 sheet or a custom panel cannot be combined into one guaranteed 5083 item. All three dimensions and the temper are confirmed together.
Standards and Documentation
ASTM B928/B928M-15(2023)e1
Current marine specification for high-magnesium aluminium-alloy sheet and plate in listed alloy–temper combinations intended for marine hull construction, direct seawater contact and similar environments.
ASTM B209/B209M-21a
General specification for aluminium and aluminium-alloy sheet and plate. It does not replace the additional marine corrosion controls of B928 where B928 is required.
ASTM B221/B221M-21
Covers extruded aluminium-alloy bars, rods, wire, profiles and tubes in listed alloys and tempers; applicability to a specific marine profile must be confirmed.
EN 573-3:2026
Current European standard defining chemical-composition limits and product forms for wrought aluminium and aluminium alloys, including EN AW designations.
EN 485-2:2018 / EN 485-4:2019
EN 485-2 specifies mechanical properties for general-engineering sheet, strip and plate; EN 485-4 addresses dimensional and shape tolerances for cold-rolled products.
Inspection and Class Requirements
EN 10204 inspection documents, class approvals, corrosion-test evidence, traceability and any WPS or OEM requirements are stated in the RFQ. Approval is verified for the exact product and manufacturing route.
Application Context
Shipbuilding and Yacht Structures
Hull plating, decks, superstructures, bulkheads, stiffeners and fabricated sections where the approved alloy, temper and design specification call for marine aluminium.
Marine Repair and Conversion
Replacement plates, cut blanks, profiles and matching filler for repair yards, yacht service and vessel modification under the original drawing, class and WPS requirements.
Offshore and Coastal Equipment
Welded structures, access systems and corrosion-resistant components for offshore, port and coastal installations after project-specific engineering review.
Capability Note
Published dimensional ranges describe demonstrated manufacturing capability across specialist sources, not guaranteed stock and not one universal mill envelope. Diameter, thickness, width, length, condition, tolerance and quantity must be confirmed as one complete combination for each inquiry.
Send Your Marine Aluminium 5083 & 5086 Inquiry
Provide the material grade or composition, governing specification, product form, complete dimensions, quantity, inspection-document requirements and delivery destination.