5086 Aluminum Bar Supplier — Marine-Grade Round / Flat / Hex Bars | ASTM B221 / EN 755 | Mill Test Certificates | MOQ 500 kg | Quote in 24h
5086 Aluminum Bars — Marine-Grade Round, Flat & Hex Bar Supplier
HXM Aluminum supplies 5086 aluminum bars in round, flat, square and hexagonal profiles for marine, offshore, defense and structural applications. 5086 is an Al-Mg alloy with higher magnesium content than 5052, delivering excellent saltwater corrosion resistance and weldability without post-weld heat treatment. If you need cut-to-length 5086 rod with certified mechanical properties and fast export packing, request a quote or WhatsApp us.
5086 Aluminum Bar Specifications
| Property | Value / Range |
|---|---|
| Alloy | 5086 (AlMg4, EN AW-5086, A95086) |
| Product forms | Round bar, flat bar, square bar, hexagonal bar |
| Diameter (round) | 6 mm – 300 mm (custom up to 400 mm) |
| Flat bar thickness | 3 mm – 80 mm |
| Width (flat) | 10 mm – 300 mm |
| Length | 1000 mm – 6000 mm; cut-to-length available |
| Temper | O, H32, H34, H36, H38, H111, H112 |
| Standards | ASTM B221, EN 573-3, EN 755-2, GB/T 3191 |
| Density | 2.66 g/cm³ |
| Typical straightness | ≤ 1 mm/m; precision ground available on request |
| Surface | Mill finish, peeled, polished, anodized-ready |
| MOQ | 500 kg per size; mixed load negotiable |
| Lead time | 7 – 20 days (stock sizes ships in 3 – 5 days) |
5086 Aluminum Bar Chemical Composition (%)
| Element | Min | Max |
|---|---|---|
| Mg | 3.50 | 4.50 |
| Mn | 0.20 | 0.70 |
| Fe | — | 0.50 |
| Si | — | 0.40 |
| Cu | — | 0.10 |
| Zn | — | 0.25 |
| Cr | 0.05 | 0.25 |
| Ti | — | 0.15 |
| Al | Remainder | Remainder |
Mechanical Properties of 5086 Aluminum Bar by Temper
| Temper | Tensile (MPa) | Yield (MPa) | Elongation % | Typical Use |
|---|---|---|---|---|
| O | 240 – 300 | 95 – 145 | 22 – 28 | Forming, bending |
| H32 | 275 – 345 | 195 – 250 | 12 – 18 | Marine panels, brackets |
| H34 | 305 – 380 | 230 – 285 | 10 – 15 | Structural fittings |
| H36 | 340 – 415 | 260 – 325 | 8 – 12 | Higher-strength parts |
| H38 | 370 – 450 | 290 – 360 | 6 – 10 | Shafts, pins |
| H111 | 250 – 310 | 105 – 155 | 18 – 24 | Welded structures |
| H112 | 260 – 320 | 115 – 165 | 16 – 22 | Marine hull frames |
5086 Round Bar Diameter Tolerances
| Diameter Range | Cold-drawn Tolerance | Extruded Tolerance | Ground Tolerance |
|---|---|---|---|
| 6 – 20 mm | h9 / -0.052 mm | ± 0.30 mm | h7 / -0.021 mm |
| 20 – 50 mm | h9 / -0.062 mm | ± 0.40 mm | h7 / -0.025 mm |
| 50 – 100 mm | h10 / -0.100 mm | ± 0.60 mm | h8 / -0.054 mm |
| 100 – 200 mm | on request | ± 1.00 mm | on request |
| > 200 mm | on request | ± 1.50 mm | on request |
Tighter tolerances available for CNC-machined parts. Provide your drawing and we will quote turned or ground bars.
5086 Aluminum Bar Equivalent Grades & Standards
| Standard / Region | Designation |
|---|---|
| ASTM | B221, B211 |
| EN | EN AW-AlMg4 / EN 573-3 / EN 755 |
| UNS | A95086 |
| GB | 5A06 / GB/T 3191 |
| ISO | AlMg4Mn |
| Marine certifications | Mill cert, EN 10204 3.1, chemical & mechanical test report |
5086 vs 5083 vs 6061 Aluminum Bar: Which One to Choose?
| Property | 5086 Bar | 5083 Bar | 6061-T6 Bar |
|---|---|---|---|
| Primary alloying | Al-Mg (4% Mg) | Al-Mg (4.5% Mg) | Al-Mg-Si |
| Tensile strength | 275 – 450 MPa | 270 – 430 MPa | 290 – 330 MPa |
| Corrosion (marine) | Excellent | Excellent | Good |
| Weldability | Excellent | Excellent | Good |
| Machinability | Fair | Fair | Good |
| Best for | Marine fittings, welded frames | High-strength marine rod | Structural, machined parts |
Choose 5083 round bar when you need the highest marine strength in rod form; choose 5086 bar for cost-effective welded marine structures; choose 6082 or 6061 bar for machined structural parts.
Applications of 5086 Aluminum Bars
- Marine fittings, cleats, bollards and handrail stanchions
- Offshore platform structural frames and walkways
- Defense vehicle bodies and armor support structures
- Welded pressure vessels and tanks
- Ship hull stiffeners and interior framing
- Cryogenic and chemical plant support rods
Cutting, Machining & Surface Options
| Service | Capability |
|---|---|
| Saw cutting | ± 1 mm length tolerance, bundle cutting available |
| Precision grinding | h7 / h8 diameter on request |
| CNC turning | Per drawing: threads, chamfers, grooves |
| Surface | Mill finish, peeled, polished Ra 0.8 – 3.2 |
| Protection | VCI paper + oil film + export plywood crate |
For welding guidance, see our aluminum welding guide; for weight estimation, use the aluminum weight calculation guide.
Packaging, Inspection & Delivery
5086 bars are bundled by size, protected with waterproof wrapping and VCI film, then loaded into plywood crates or steel frames for sea freight. Each shipment includes mill test certificate (MTC), chemical composition report and mechanical test report. Third-party inspection (SGS, BV) is available on request.
Related Aluminum Bars & Tubes
Explore our full 5000-series and 6000-series bar/tube range:
- 5052 aluminum bars — medium strength, excellent formability
- 5083 aluminum round bar — marine-grade high-strength rod
- 6082 aluminum bars — structural rod with good machinability
- 5086 aluminum tubes — same alloy in tube form
- 5052 alloy hub — 5000-series authority page
Frequently Asked Questions
What is 5086 aluminum bar used for?
5086 aluminum bar is used for marine fittings, offshore frames, welded structures, pressure vessels and defense components where saltwater corrosion resistance and weldability are critical.
What diameters do you stock for 5086 round bar?
We supply 5086 round bar from 6 mm to 300 mm diameter, with cut-to-length service. Larger sizes up to 400 mm can be sourced or custom produced.
Is 5086 bar marine grade?
Yes. 5086 is a marine-grade aluminum alloy due to its high magnesium content, offering excellent resistance to seawater and industrial atmospheres.
What tempers are available for 5086 aluminum bar?
Common tempers are O, H32, H34, H36, H38, H111 and H112. H112 and H111 are widely used for welded marine structures.
What is the straightness tolerance of 5086 aluminum bars?
Standard straightness is ≤ 1 mm/m. Precision-ground or cold-drawn bars can achieve tighter straightness on request.
Can 5086 aluminum bar be welded?
Yes, 5086 has excellent weldability with ER5356 or ER5556 filler wire. No post-weld heat treatment is normally required.
How does 5086 compare to 5083 aluminum bar?
5086 offers slightly lower strength than 5083 but better economy and formability. 5083 is preferred when maximum marine strength is required.
How does 5086 compare to 6061 aluminum bar?
5086 has better corrosion and weldability for marine use; 6061-T6 has better machinability and is preferred for structural machined parts.
What is the MOQ for 5086 aluminum bars?
MOQ is 500 kg per size. Mixed loads and trial orders are negotiable.
How long is the lead time?
Stock sizes ship in 3 – 5 days; custom cutting and production typically take 7 – 20 days depending on quantity and tolerance.
What certificates do you provide?
We provide Mill Test Certificate (MTC), chemical composition report, mechanical test report and EN 10204 3.1 on request.
How do I get a quote?
Send us your required diameter or profile, temper, quantity and destination port. We will reply within 24 hours by email or WhatsApp.
Ready to Order 5086 Aluminum Bars?
Tell us diameter, temper, quantity and destination. HXM Aluminum ships cut-to-length 5086 bars worldwide.
