Henan Gnee New Material Co., Ltd. is one of the most reliable manufacturers and suppliers of premium marine grade 5086 aluminum sheet in China. With abundant experience, we warmly welcome you to wholesale high quality premium marine grade 5086 aluminum sheet in stock here from our factory. Good service and reasonable price are available.
Looking for top-tier aluminum material for marine environments or heavy-duty pressure vessels?
As a certified comprehensive aluminum supplier, GNEE Aluminum provides mill-direct 5086 aluminum plates that strictly comply with international standards (ASTM B209, EN573) and can be supplied with major marine classification society certifications.
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Premium Marine Grade 5086 Aluminum Sheet Description
Key Advantages of 5086 Aluminum Alloy Sheet
Stop worrying about structural failure in harsh environments. Here is why shipyards and industrial manufacturers choose our 5086 aluminum plates:
- Superior Marine-Grade Corrosion Resistance: Outstanding performance in seawater and industrial chemical environments, effectively preventing pitting and structural degradation.
- Excellent Weldability: Retains most of its mechanical strength even after welding, making it the ideal choice for hull construction and pressure vessel fabrication without the need for post-weld heat treatment.
- High Strength-to-Weight Ratio: Stronger than 5052 and 5005 alloys, allowing engineers to design lighter vessels and vehicles, which improves fuel efficiency and payload capacity.
- Superb Cold Workability: In the O (annealed) or H111 tempers, 5086 aluminum exhibits excellent ductility, making it easy to bend, form, and stamp.
5086 Aluminum Sheet Specifications
We maintain a large stock of standard sizes and offer customized cutting and leveling services to meet your precise project drawings.
| Specification | Details |
| Alloy Grade | 5086 Marine Aluminum |
| Temper | O, H12, H14, H16, H18, H32, H34, H36, H38, H111, H112, H116, H321 |
| Thickness Range | 0.5mm - 500mm |
| Width | 100mm - 2650mm (Ultra-wide available for shipbuilding) |
| Length | 500mm - 16000mm or Custom Cut |
| Standards | ASTM B928, ASTM B209, EN 485, GB/T 3880 |
| Certifications | ISO 9001, SGS, BV, DNV, ABS, CCS, LR (Upon request) |
Technical Data: 5086 Aluminum Chemical & Mechanical Properties
To ensure full transparency and material reliability, the following tables present the standard chemical composition and mechanical properties of 5086 aluminum alloy.
All materials supplied by GNEE, a Chinese supplier, are delivered with a Mill Test Certificate (MTC) in accordance with EN 10204 3.1 to guarantee traceability and compliance with international standards.
Chemical Composition of 5086 Aluminum Alloy (%)
| Alloy | Si | Fe | Cu | Mn | Mg | Cr | Zn | Ti | Al |
|---|---|---|---|---|---|---|---|---|---|
| 5086 | ≤0.40 | ≤0.50 | ≤0.10 | 0.20 – 0.70 | 3.50 – 4.50 | 0.05 – 0.25 | ≤0.25 | ≤0.15 | Remainder |
Mechanical Properties of 5086 Aluminum (Typical Tempers)
| Temper | Tensile Strength (Rm / MPa) | Yield Strength (Rp0.2 / MPa) | Elongation (%) |
|---|---|---|---|
| H32 | 275 – 350 | ≥ 195 | ≥ 9 |
| H116 | ≥ 275 | ≥ 195 | ≥ 10 |
| O / H111 | 240 – 305 | ≥ 95 | ≥ 16 |
Notes for Buyers
5086 aluminum alloy is a high-magnesium marine-grade aluminum known for its excellent corrosion resistance in seawater environments.
Tempers 5086 H32 and 5086 H116 are commonly used in shipbuilding, offshore structures, and marine equipment.
The O / H111 temper provides improved formability and is suitable for applications requiring bending or forming.
All materials from GNEE can be supplied with EN 10204 3.1 certification, chemical analysis reports, and mechanical test data.
Major Applications of 5086 Aluminum Plate
Because of its unique blend of machinability, strength, and saltwater resistance, 5086 aluminum finds extensive applications in:
- Shipbuilding & Marine Engineering: Hull structures, decks, bulkheads, patrol boats, yachts, and workboats (often utilizing H116 or H321 tempers for maximum marine resilience).
- Transportation Industry: Tanker trucks, armored vehicles, railway carriages, and subway cars where light weight and rust resistance are vital.
- Pressure Vessels & Storage: Cryogenic storage tanks, refrigeration equipment, and heavy-duty industrial heat exchangers.
- Construction & Offshore: Desalination plants, offshore oil rig components, and coastal building facades.
GNEE Export Packaging: Ensuring 100% Damage-Free Delivery
Ocean freight can cause white rust (oxidation) or edge damage if materials are poorly packed. GNEE Aluminum employs a rigorous, 4-step seaworthy packaging protocol for all 5086 aluminum sheets:
- Surface Protection: PVC/PE protective film is applied to the sheet surface to prevent scratches.
- Moisture Isolation: Tightly wrapped in waterproof kraft paper and plastic film with desiccants to block salty ocean humidity.
- Edge & Corner Protection: Hard cardboard corner guards are installed to prevent physical deformation during transit.
- Solid Fumigated Pallets: Bundles are firmly secured with high-tension steel straps onto export-standard wooden pallets, ensuring safe loading and unloading.
About GNEE: Your Trusted Aluminum Supply Chain Partner
GNEE is a premier comprehensive aluminum material enterprise located in China, bridging the gap between superior manufacturing and global procurement needs.
Zero-Risk Procurement: GNEE's 5-Step Quality Assurance
We understand that an entire project can be delayed by a single defective plate. GNEE minimizes your purchasing risk through strict QA protocols:
- Chemical Composition Testing: Every batch undergoes Direct Reading Spectrometer testing to ensure Mg and Mn levels are perfectly within 5086 standard limits.
- Ultrasonic Testing (UT): Thick 5086 aluminum plates (above 10mm) can be subjected to ultrasonic flaw detection to guarantee no internal pores, inclusions, or delamination.
- Mechanical Property Verification: Tensile strength and yield strength are tested and documented in the Mill Test Certificate (MTC).
- Marine Corrosion Testing: For marine tempers (H116/H321), strict exfoliation corrosion and intergranular corrosion tests are conducted.
- Third-Party Inspection: We warmly welcome pre-shipment inspections by SGS, TUV, or your designated representatives.
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Frequently Asked Questions (FAQ)
Q: What is the main difference between 5086 and 5083 aluminum sheets?
A: Both are excellent 5000-series marine alloys. The primary difference is the magnesium content. 5083 has higher magnesium (4.0-4.9%), making it stronger and the go-to choice for massive structural ship hulls. 5086 has slightly less magnesium (3.5-4.5%), making it slightly less strong but offering better formability and ductility. 5086 is often preferred for smaller vessels, superstructure components, or parts requiring complex bending.
Q: Which temper of 5086 aluminum sheet is best for shipbuilding?
A: For marine environments, the H116 and H321 tempers are highly recommended. These tempers undergo special processing to maximize their resistance to exfoliation and intergranular corrosion in seawater.
Q: Can you provide Mill Test Certificates (MTC) for the 5086 plates?
A: Yes, absolutely. We provide a standard EN 10204 3.1 Mill Test Certificate with every shipment, ensuring complete traceability of chemical composition and mechanical properties.
Expert Processing & Fabrication Guide
To help your production team maximize the performance of GNEE 5086 aluminum plates, our metallurgical engineers recommend the following:
Welding Advice: 5086 has superb weldability using TIG or MIG methods. For the best color match after anodizing and maximum joint strength, we strongly recommend using ER5356 filler wire. Post-weld heat treatment is not required, as the heat-affected zone retains good strength.
Forming & Bending: If your project involves complex bending (e.g., boat chines), the O temper or H111 temper is ideal due to its high elongation (≥16%). For harder tempers like H32, ensure an appropriate minimum bend radius (typically 1.5t to 2.5t, depending on thickness) to prevent surface micro-cracking.
Machining: While 5000-series alloys are relatively soft, 5086 machines reasonably well. Use high-speed steel (HSS) or carbide tools with generous rake angles and continuous lubrication to prevent built-up edge (BUE).
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