When operating in harsh marine environments or high-pressure industrial applications, standard piping materials simply cannot survive. Material failure leads to costly downtimes and severe safety hazards. EN AW-5086 aluminum seamless tube is an essential marine-grade alloy specifically engineered to deliver outstanding corrosion resistance, superior weldability, and reliable mechanical strength in extreme conditions.
At GNEE, we are a leading custom 5086 aluminum pipe manufacturer. We supply both seamless and extruded 5086 aluminum tubing strictly manufactured to ASTM and international standards. Whether you are building ship hulls, offshore drilling rigs, or cryogenic storage systems, we provide the traceable, certified materials your project demands.
Need reliable materials fast? Contact GNEE today for a quick quote within 24 hours. We provide EN 10204 3.1 Material Test Certificates (MTC), marine class approvals (DNV, ABS), and free samples to guarantee our quality before you buy.
What is 5086 Aluminum Alloy Tubing?
Engineers often need to choose between the 5xxx series alloys for marine and pressure applications. It is crucial to understand where 5086 marine aluminum pipe fits in:
- Compared to 5052: 5086 contains higher magnesium, giving it significantly higher tensile and yield strength than 5052, making it suitable for structural and high-pressure applications.
- Compared to 5083: While 5083 offers the highest sheer strength, 5086 aluminum tubing provides a better balance. It offers excellent strength but retains superior formability and bending capabilities and is slightly easier to weld without cracking.
This optimal balance makes the 5086-H32 aluminum pipe the go-to choice for complex pipeline architectures that require both high strength and heavy fabrication.
Manufacturing Specifications of 5086 Aluminum Pipe
We manufacture and stock 5086 aluminum pipes according to strict global standards to ensure seamless integration into your existing engineering designs.
| Category | Standard / Specification | Description |
|---|---|---|
| ASTM Standards (USA) | ASTM B210 | Drawn Seamless Tubes |
| ASTM B221 | Extruded Bars, Rods, Wire, Profiles & Tubes | |
| ASTM B241 | Seamless Extruded Tubes for Pressure Applications | |
| ASTM B429 | Structural Pipe and Tube | |
| ASTM B547 | Formed and Arc-Welded Round Tube | |
| Military Specification | WW-T-700/5 | Aluminum Alloy Tubing (Military Standard) |
| European Standard | EN AW-AlMg4 | European designation for 5086 alloy |
| German Standard (DIN) | 3.3545 (AlMg4Mn) | DIN equivalent grade |
| Japanese Standard (JIS) | JIS 5086 | Japanese Industrial Standard equivalent |
| Russian Standard (GOST) | AMg4 | Russian equivalent alloy |
| Unified Numbering System | UNS A95086 | International alloy designation |
Chemical Composition of EN AW-5086 Aluminum Seamless Tube (Weight %)
| Element | Composition (%) |
|---|---|
| Magnesium (Mg) | 3.50 – 4.50 |
| Manganese (Mn) | 0.20 – 0.70 |
| Silicon (Si) | ≤ 0.40 |
| Iron (Fe) | ≤ 0.50 |
| Chromium (Cr) | 0.05 – 0.25 |
| Zinc (Zn) | ≤ 0.25 |
| Titanium (Ti) | ≤ 0.15 |
| Copper (Cu) | ≤ 0.10 |
| Aluminum (Al) | Remainder |
Physical Properties of 5086 Aluminum Tube
| Property | Value |
|---|---|
| Density | 2.70 g/cm³ |
| Melting Point | 640 °C |
| Modulus of Elasticity | 68 GPa |
| Thermal Conductivity | 130 W/m·K |
| Electrical Resistivity | 31% IACS |
Mechanical Properties of 5086-H32 and Other Tempers
Depending on your application-whether you need deep bending or maximum rigidity-GNEE supplies 5086 aluminum tubes in various tempers. The H32 temper (strain-hardened and stabilized) is the most common for marine pipelines.
| Temper | Wall Thickness (mm) | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) |
| O, H111 | ≤ 20 | 240 - 320 | Min. 95 | 16 | 65 |
| H12, H22, H32 | ≤ 10 | Min. 270 | Min. 190 | 5 | 85 |
| H14, H24, H34 | ≤ 5 | Min. 295 | Min. 230 | 3 | 95 |
| H16, H26, H36 | ≤ 5 | Min. 320 | Min. 260 | 2 | 100 |
Industrial Applications for 5086 Seamless Aluminum Tubing
Because it does not require post-weld heat treatment to retain its strength, 5086 aluminum pipe is widely adopted across heavy industries:
1. Shipbuilding and Marine Engineering
Extensively used for ship piping systems, desalinization plants, workboat masts, and patrol boat handrails. (Note: For complete vessel integration, GNEE also supplies matching 5086 and 5083 marine-grade aluminum plates and sheets, ensuring your entire hull and piping system share the same anti-corrosion properties.)
2. Oil & Gas and Pressure Vessels
ASTM B241 seamless 5086 aluminum pipe is ideal for oil drilling rigs, offshore platforms, and high-pressure transmission lines due to its high burst pressure limits and resistance to sour gas (H2S).
3. Cryogenic Equipment
Unlike steel, 5086 aluminum does not become brittle at extreme low temperatures. It retains its ductility, making it the standard material for LNG (Liquefied Natural Gas) storage tanks, cryogenic pipework, and low-temperature gas transport.
5086 Aluminum Seamless Tube Specification
| Item Type | 5086 Aluminum Pipe |
| Material | 5052/5083/5086/5005/5251, etc. |
| Temper | O/H112/H32/H34/H36/H38/H321/H116/H112/H111 |
| OD | 4-600mm |
| WT | 1-25mm |
| Shapes | Round, Rectangular, Customized Shapes. |
| Surface treatment | Anodizing, Mill finish, Electroplating, Polishing, Sand blasted, Powder coating, Silver plating, Brushed, Painted, PVDF etc. |
| Deep processing | CNC,drilling,milling,cutting,stamping,welding,bending,assembling,Custom Aluminum Fabrication. |
| Standard | GB, ASTM , AISI , DIN , BS, JIS |
| Certification | ISO9001 |
| Delivery Time | 15-20 days after sample confirmed & down payment, or negotiated |
| OEM/ODM | Acceptable |
| Service | 1. Free sample, Free design; 2. OEM/ODM available; 3. Custom-made request; 4. New design solution suggestion. |
5083 Aluminum Welding and Fabrication Recommendations
5086 aluminum pipe is famous for its weldability. It is highly suitable for TIG (GTAW) and MIG (GMAW) welding.
- Filler Metal: We highly recommend using ER5356 or ER5183 filler wire to match the strength of the base metal.
- Preheating: Minimal to no preheating is required, drastically reducing fabrication time.
- HAZ Integrity: The Heat-Affected Zone (HAZ) in 5086 retains excellent structural integrity and is highly resistant to hot cracking.
Why Top Engineers Trust GNEE for Aluminum Pipe Procurement
Procuring marine-grade piping is a high-stakes decision. GNEE eliminates the risk of material failure and supply chain delays through our transparent and certified operations.
- 100% Certified Marine Quality: We provide materials approved by top classification societies including DNV, ABS, LR, and BV. Every order comes with complete EN 10204 3.1 MTCs, proving chemical and mechanical compliance.
- Rigorous Flaw Detection: For heavy-wall and pressure-vessel pipes, we conduct Eddy Current Testing (ECT) and Ultrasonic Testing (UT) to guarantee there are no hidden internal cracks or porosity.
- Massive Inventory & Fast Delivery: We stock hundreds of tons of standard Schedule 40 and Schedule 80 5086 aluminum pipes. Standard orders are shipped within 15-25 days, with next-day dispatch available for in-stock items.
- Custom CNC Machining: Beyond raw pipes, GNEE offers custom cutting, precise CNC bending, threading, and surface treatments (anodizing) to deliver ready-to-install components.
Ready to upgrade your project's piping system?
Stop worrying about material failure or delayed shipments. Partner with GNEE, your direct custom 5086 aluminum pipe manufacturer.
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