5086 aluminum round bar is a marine-grade alloy known for its excellent corrosion resistance, medium-to-high strength, and outstanding weldability.
It is widely used in marine, structural, and industrial applications where durability matters.
We supply 5086 aluminum round bar with cut-to-length service, CNC machining, chamfering, and small-batch sampling.
This flexibility helps you move from design to production with confidence and speed.
Specifications of 5086 aluminum round bar
Our 5086 aluminum round bar is manufactured in strict accordance with relevant international standards.
Full material traceability and inspection documentation are available for every order.
- EN 573
- EN 754-2 / EN 755-2
- ASTM B221
- ASME SB-221
- GB/T 3191
Each batch of 5086 aluminum round bar can be supplied with an EN 10204 3.1 material test certificate.
When required, we can also support third-party inspection by SGS, BV, or other agencies for chemical composition, mechanical properties, or specific project tests, with independent reports issued.
For marine, shipbuilding, and offshore projects, our 5086 aluminum round bar can be selected and supplied in accordance with classification society requirements.
This includes CCS, DNV, NK, ABS, BV, LR, and KR standards.
If your design drawings or tender documents specify a particular classification society,
please indicate this clearly when sending your inquiry so we can match your requirements precisely.
Popular sizes of 5086 aluminum round bar
To help marine, offshore, and equipment manufacturers select the right material quickly, we keep a wide range of 5086 aluminum round bar diameters in regular stock, with cut-to-size and machining services available.
- Standard diameter range: approx. 0.25" – 8" (about 6–200 mm)
- Large diameter range: approx. 9" – 14" (about 250–350 mm)
- Standard length: typically supplied in full lengths of 3–6 meters, cut to size based on project requirements
- Temper: commonly supplied in 5086-H111, H112, O, and H32
To make planning easier, we also offer an aluminum round bar weight calculator.
Simply enter the alloy, diameter, and length to get the single-piece and total weight instantly.
This helps you estimate order quantities, container loading plans, and freight costs with confidence.
| Temper | Diameter (in) | Diameter (mm) | Weight (lb/ft) | Standard length |
| 5086 1/4" aluminum round bar | 1/4 | 6.35 | 0.058 | 12'–20' |
| 5086 5/16" aluminum round bar | 5/16 | 7.94 | 0.090 | 12'–20' |
| 5086 3/8" aluminum round bar | 3/8 | 9.52 | 0.130 | 12'–20' |
| 5086 1/2" aluminum round bar | 1/2 | 12.70 | 0.231 | 12'–20' |
| 5086 5/8" aluminum round bar | 5/8 | 15.88 | 0.361 | 12'–20' |
| 5086 3/4" aluminum round bar | 3/4 | 19.05 | 0.520 | 12'–20' |
| 5086 7/8" aluminum round bar | 7/8 | 22.22 | 0.707 | 12'–20' |
| 5086 1" aluminum round bar | 1 | 25.40 | 0.924 | 12'–20' |
| 5086 1-1/8" aluminum round bar | 1-1/8 | 28.57 | 1.169 | 12'–20' |
| 5086 1-1/4" aluminum round bar | 1-1/4 | 31.75 | 1.443 | 12'–20' |
| 5086 1-3/8" aluminum round bar | 1-3/8 | 34.92 | 1.746 | 12'–20' |
| 5086 1-1/2" aluminum round bar | 1-1/2 | 38.10 | 2.078 | 12'–20' |
| 5086 1-5/8" aluminum round bar | 1-5/8 | 41.27 | 2.439 | 12'–20' |
| 5086 1-3/4" aluminum round bar | 1-3/4 | 44.45 | 2.829 | 12'–20' |
| 5086 1-7/8" aluminum round bar | 1-7/8 | 47.62 | 3.247 | 12'–20' |
| 5086 2" aluminum round bar | 2 | 50.80 | 3.695 | 12'–20' |
| 5086 2-1/4" aluminum round bar | 2-1/4 | 57.15 | 4.676 | 12'–20' |
| 5086 2-1/2" aluminum round bar | 2-1/2 | 63.50 | 5.773 | 12'–20' |
| 5086 3" aluminum round bar | 3 | 76.20 | 8.313 | 12'–20' |
| 5086 3-1/2" aluminum round bar | 3-1/2 | 88.90 | 11.314 | 12'–20' |
| 5086 4" aluminum round bar | 4 | 101.60 | 14.778 | 12'–20' |
| 5086 4-1/4" aluminum round bar | 4-1/4 | 107.95 | 16.683 | 12'–20' |
| 5086 4-1/2" aluminum round bar | 4-1/2 | 114.30 | 18.703 | 12'–20' |
| 5086 4-3/4" aluminum round bar | 4-3/4 | 120.65 | 20.839 | 12'–20' |
| 5086 5" aluminum round bar | 5 | 127.00 | 23.091 | 12'–20' |
| 5086 5-1/2" aluminum round bar | 5-1/2 | 139.70 | 27.940 | 12'–20' |
| 5086 6" aluminum round bar | 6 | 152.40 | 33.251 | 12'–20' |
| 5086 6-1/2" aluminum round bar | 6-1/2 | 165.10 | 39.023 | 12'–20' |
| 5086 7" aluminum round bar | 7 | 177.80 | 45.258 | 12'–20' |
| 5086 11" aluminum round bar (cast) | 11 | 279.40 | 111.76 | 12'–20' |
If you do not find an exact match for diameter or length in the table, please send us your required specifications (diameter, length, and quantity).
Our team will confirm the most suitable size and the current lead time for your project.
Manufacturing process of 5086 aluminum round bar
Choosing the right manufacturing process is critical in the production of 5086 aluminum round bar.
Different processes affect cost and lead time, and directly determine dimensional accuracy, mechanical properties, and surface quality.
Extruded 5086 aluminum round bar
Best for high-volume supply with stable dimensions and good weldability.
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Forged 5086 aluminum round bar
Best for high-strength parts used under heavy loads and harsh conditions.
Contact UsCast 5086 aluminum round bar
Best for extra-large diameters or complex shapes at a lower cost.
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Turned 5086 aluminum round bar
Best for small-batch precision parts with tight tolerances.
Contact UsAdvantages of 5086 aluminum round bar
- Excellent corrosion resistance in seawater and marine atmospheres.
- 5086 is a non-heat-treatable alloy strengthened mainly by cold working, offering medium to high strength and higher strength than 5052.
- Well suited for standard MIG and TIG welding, with stable and reliable weld joint performance.
- Maintains good strength and toughness under cyclic loading and low-temperature conditions.
- In the annealed (O) temper, it offers good cold formability for bending, rolling, and stamping operations.
- Naturally non-magnetic, making it suitable for applications sensitive to magnetic or electromagnetic interference.
Properties of 5086 aluminum round bar
Based on your project requirements, we can provide the corresponding material certificates and inspection reports.
All data can be supported with traceable documentation.
Physical properties
| Density | 2.66 g/cm³ |
| Thermal conductivity | 120–140 W/m·K |
| Coefficient of thermal expansion | 23.8 × 10⁻⁶ /K |
| Electrical conductivity | 17–19 m/Ω·mm²(约 30% IACS) |
| Specific heat capacity | 900 J/(kg·K) |
| Elastic modulus | 70 GPa(10,300 ksi) |
| Poisson's ratio | 0.33 |
Mechanical properties – 5086 cold drawn bar (EN 754)
Optimized for CNC machining, offering tighter dimensional tolerances, better surface finish, and more stable performance during turning and milling.
| Temper | O, H111 | H12, H22, H32 |
| Round bar diameter (mm) | ≤ 80 | ≤ 30 |
| Tensile strength (MPa) | 240–320 | ≥ 270 |
| Yield strength (MPa) | ≥ 95 | ≥ 190 |
| Elongation A (%) | ≥ 16 | ≥ 5 |
| Elongation A50mm (%) | ≥ 14 | ≥ 4 |
| Brinell hardness | 65 | 85 |
Mechanical properties – 5086 extruded bar (EN 755)
Designed for welded and corrosion-critical structures, prioritizing marine corrosion resistance and reliable performance in structural applications.
| Temper | F, H112 | O, H111 |
| Round bar diameter (mm) | ≤ 250 | ≤ 200 |
| Tensile strength (MPa) | ≥ 240 | 240–320 |
| Yield strength (MPa) | ≥ 95 | ≥ 95 |
| Elongation A (%) | ≥ 12 | ≥ 18 |
| Elongation A50mm (%) | ≥ 10 | ≥ 15 |
| Brinell hardness | 65 | 65 |
If you have specific strength, size, or welding requirements, please contact our experts for tailored recommendations and technical support.
Chemical composition of 5086 aluminum round bar (according to EN 573)
The chemical composition of 5086 aluminum alloy gives it excellent performance in marine and highly corrosive environments.
It is especially suitable for shipbuilding, offshore structures, pressure vessels, and other engineering projects requiring high strength and corrosion resistance.
Below are the key chemical composition limits of 5086 aluminum alloy:
| Element | Percentage range |
| Aluminum (Al) | ≥ 95.4% |
| Chromium (Cr) | 0.05% – 0.25% |
| Copper (Cu) | max. 0.10% |
| Iron (Fe) | max. 0.50% |
| Magnesium (Mg) | 3.5% – 4.5% |
| Manganese (Mn) | 0.2% – 0.7% |
| Zinc (Zn) | max. 0.25% |
| Silicon (Si) | max. 0.40% |
| Titanium (Ti) | max. 0.15% |
| Others | max. 0.05% |
If you need customized support or want to confirm whether this material meets your project requirements, contact our experts today for tailored guidance and material verification assistance.
International designations of 5086 aluminum alloy
| Europe | United States | International | Germany | France | Spain | Italy |
| EN AW-5086 | UNS A95086, AA 5086 | ISO AlMg4 | DIN 3.3545 | NF-A-G4MC | L-3322 [Al-4Mg] | UNI 9005/4 [P-AlMg4MnCr] |
If your design drawings or specifications reference any of the standards listed above, our 5086 aluminum round bar can be supplied accordingly to ensure full compliance with your international or industry requirements.
Applications of 5086 aluminum round bar
Thanks to its excellent strength, corrosion resistance, and weldability, 5086 aluminum alloy is widely used across many industries.
It is especially favored in demanding applications such as shipbuilding, pressure vessels, offshore platforms, cryogenic equipment, and defense-related projects.
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Marine & Shipbuilding
5086 aluminum round bar is widely used in marine and shipbuilding applications such as hull frames and keel reinforcements to strengthen hull structures and ensure vessel stability, deck handrails, stanchions, gangways, and ladders to improve safety and structural reliability, as well as structural connectors for docks, piers, and jetties that require long-term strength and corrosion resistance.
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Pressure Vessels & Cryogenic Equipment
In pressure vessel and cryogenic equipment applications, 5086 aluminum round bar is used for welded storage tanks, stiffening rings, bases, support legs, stiffeners, and tie rods in high-pressure containers, and for structural components in cryogenic vessels where stable performance is required under extremely low-temperature conditions.
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Offshore & Oil/Gas
For offshore and oil and gas projects, 5086 aluminum round bar is applied in offshore platform structural members, towers, and drilling rig components, as well as pipe clamps and support blocks for oil and gas pipelines, providing reliable load-bearing capacity and corrosion resistance in harsh marine and industrial environments.
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Defense & Special Vehicles
5086 aluminum round bar is used in light armored vehicle structures, supports, and frames, where high strength, corrosion resistance, and reliable performance are required for defense and special-purpose vehicle applications.
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General Engineering & Food Industry
In general engineering and food industry applications, 5086 aluminum round bar is used for structural parts subjected to repeated loading and high stress, and for food-related equipment that requires compliance with safety standards in processing and packaging systems.
If you need more customized solutions or have questions about specific applications, feel free to contact our expert team for professional advice and support.
Quality assurance of 5086 aluminum round bar
To ensure consistently high standards throughout production,
we apply comprehensive quality assurance measures that support long-term and reliable cooperation.
Raw material and extrusion process control
We strictly control raw material sourcing to ensure every batch complies with EN 573-3 and related standards.
Dimensional accuracy and tolerance control
Our dimensional accuracy and tolerance control exceed industry norms.
All products meet ASTM B221, EN 755, and other international standards, with custom cutting and sizing available based on project needs.
Straightness and concentricity control
Straightness and concentricity are critical for performance.
We tightly control these parameters to ensure easy installation and stable, wobble-free operation.
Crack-free, void-free, ultrasonic testing
All products undergo ultrasonic testing after production.
This ensures no cracks, no internal voids, and no surface defects.
Mechanical property consistency
Mechanical property reports are provided for each batch.
Tensile strength, yield strength, and elongation remain stable and consistent.
Batch consistency and full traceability
Each batch is supplied with full material documentation.
When required, third-party inspection reports from SGS, BV, or other accredited agencies are also available.
Our services
We offer a full range of efficient and precise processing and customization services to support your projects.
Bending and rolling services
5086 aluminum round bars in O temper are available for bending, rolling, and other cold forming operations.
Machining services
CNC machining: precision turning, drilling, and tapping are performed according to your drawings, ensuring tight tolerances and good surface finish.
Small-batch customization: from prototypes to low-volume production, we respond quickly and deliver on time.
Welding services
MIG and TIG welding services are available, with joint strength maintained after welding.
This makes our products suitable for marine platforms, ship structures, and other welded applications.
Cutting services
Multiple cutting methods: sawing, laser cutting, and waterjet cutting are supported to meet different application needs.
Cut-to-length service: round bars can be cut to your required lengths with high accuracy.
One-stop customization
Machining to drawing: we process according to your drawings and provide a one-stop solution from raw material to finished parts.
Material certificates and inspection reports: each batch is supplied with full documentation to ensure traceability and project compliance.
If you have any machining requirements or project inquiries, contact us anytime and we will provide the most suitable solution to keep your project moving smoothly.
Comparison of 5086 aluminum round bar with other common alloys
- 5086 vs 5052: 5086 offers higher strength and better corrosion resistance, making it more suitable for harsh marine environments.
- 5086 vs 5083: both are used in marine applications, but 5086 is more common for extruded products and high-strength components, while 5083 is often used for thicker hull plates.
- 5086 vs 6061: 5086 provides superior corrosion resistance in seawater and is better suited for welded structures, while 6061 is used for general structural applications.
- 5086 vs 5456: 5456 has higher strength, but welding performance and stress corrosion concerns are more pronounced.
- 5086 vs 6063: 6063 is mainly used for architectural and light structural purposes, while 5086 is preferred for marine and high-strength applications.
Related products of 5086 aluminum round bar
If you have any requirements for 5086 aluminum bars, plates, tubes, or extrusions, or would like to learn more about our one-stop supply services, feel free to contact our team today.
We provide a full range of related products, including:
5086 aluminum square bar
5086 aluminum hex bar
5086 aluminum plate
5086 aluminum tube
5083 aluminum tube
5083 aluminum round bar
5456 aluminum round bar
6063 aluminum round bar
6063 aluminum tube
Why choose a unified supply of the 5086 alloy series?
Consistent chemistry, stable batches: supplying 5086 plates, round bars, and extrusions from one source ensures consistent composition and batch stability. This reduces quality variation and delivers more predictable welding performance.
Controlled galvanic corrosion risk: using a single alloy series helps minimize galvanic corrosion, especially when 5086 comes into contact with steel or copper, supporting long-term project reliability.
Simplified purchasing and logistics: one-stop sourcing of 5086 / 5083 / 5456 / 6063 products streamlines procurement for shipbuilding and offshore projects, reduces supplier coordination, and improves overall logistics efficiency.
How to order – inquiry checklist
To provide an accurate quotation quickly, please include the following details in your inquiry:
- Alloy & temper (such as 5086-H111 / H112 / H116 / O)
- Diameter (mm or inch)
- Length (standard length or cut to size)
- Quantity or total weight
- Application and required standards (ASTM, EN, GB, ASME, etc.)
- Machining or surface requirements
- Destination port and expected delivery time
Send us your drawings or size list, and we will provide a quotation within 24 hours.
FAQ about 5086 aluminum round bar
Is 5086 aluminum round bar marine grade?
Yes, 5086 aluminum round bar is a marine-grade alloy, ideal for use in seawater environments.
Can 5086 round bar be welded easily?
Yes, 5086 offers excellent weldability, commonly used in MIG/TIG welding applications.
What sizes and tempers are available from Chalco?
We offer 5086 aluminum round bar in various diameters (from 6mm to 180mm) and tempers (e.g., H111, H112, O).
How does 5086 compare to 6061 or 5083 in seawater service?
5086 has better corrosion resistance in seawater than 6061, and is preferred over 5083 for extrusions and round bars in marine applications.
Can you cut and machine the bar to my drawing?
Yes, we can cut and machine the 5086 aluminum round bar to your custom specifications.