5082 aluminum (AlMg4.5) is a medium-strength, non-heat-treatable 5xxx alloy with strong resistance to seawater and industrial atmospheres. Its balanced magnesium content gives good weldability and formability without the stress-corrosion risk of higher-Mg grades, making it a workhorse for shipbuilding, vehicle bodies, and welded structures. Linsy supplies 5082 sheet, plate, bar, and tube in O, H111, H112, and H3x tempers.
Verfügbare Formulare: sheet / plate / bar / tube / profile / coil
Häufige Temperamente: O / H111 / H112 / H32 / H34 / H38
Unterstützung bei der Bearbeitung: CNC machining / welding / laser cutting / anodizing / powder coating
Qualitätsdokumente: MTC-Bericht bei jeder Bestellung
5082 aluminum, also written AlMg4.5, is a non-heat-treatable 5xxx-series alloy containing about 4.0-5.0% magnesium. It sits between the softer 5052 and the stronger marine grades such as 5083 and 5059. The moderate magnesium level gives 5082 good strength, excellent weldability, and reliable corrosion resistance in marine and industrial environments, while keeping the risk of sensitization low.
Because it is strain-hardenable rather than heat-treatable, 5082 is supplied in O, H111, H112, and the H3x strain-hardened tempers. It is a common choice for ship superstructures, vehicle bodies, pressure equipment, and architectural paneling.
Linsy stocks and custom-rolls 5082 in the following forms. Dimensions below are typical production ranges; other sizes can be negotiated on request.
| Abmessung | Typischer Bereich | Note |
|---|---|---|
| Dicke | 0.5 – 150 mm | Plate up to 150 mm, sheet 0.5 – 6 mm |
| Breite | 500 – 3000 mm | Mill or cut-to-length edge |
| Länge | 500 – 12000 mm | Custom lengths available |
| Übliche Härtegrade | O, H111, H112, H32, H34, H38 |
| Abmessung | Typischer Bereich | Note |
|---|---|---|
| Durchmesser | 6 – 400 mm | Round, square, hexagonal |
| Länge | 500 – 12000 mm | Cut to length |
| Übliche Härtegrade | O, H111, H112 |
| Abmessung | Typischer Bereich | Note |
|---|---|---|
| Außendurchmesser | 6 – 400 mm | Seamless or welded |
| Wandstärke | 0.5 – 40 mm | |
| Länge | 500 – 12000 mm | Custom lengths available |
| Übliche Härtegrade | O, H111, H112 |
| System | Bezeichnung |
|---|---|
| AA / UNS | 5082 / A95082 |
| DE | EN AW-5082 (AlMg4.5) |
| Common standards | ASTM B209, EN 485, EN 573, EN 754 |
Composition below follows the AA 5082 specification. Values are weight percent, balance aluminium.
| Element | Inhalt (%) |
|---|---|
| Silizium (Si) | 0,20 max. |
| Eisen (Fe) | 0,35 max |
| Kupfer (Cu) | 0,15 max |
| Mangan (Mn) | 0.15 – 0.35 |
| Magnesium (Mg) | 4.00 – 5.00 |
| Chrom (Cr) | 0,15 max |
| Zink (Zn) | 0,25 max |
| Titan (Ti) | 0,10 max |
| Others (each / total) | 0.05 / 0.15 |
| Aluminium (Al) | Bilanz |
Typical room-temperature properties for 5082 sheet and plate. Values are indicative and should be confirmed against the ordered specification and thickness.
| Temperament | Zugfestigkeit (MPa) | Streckgrenze (MPa) | Dehnung (%) | Brinellhärte (HB) |
|---|---|---|---|---|
| O | 275 | 125 | 22 | 75 |
| H111 | 305 | 160 | 18 | 85 |
| H32 | 315 | 245 | 14 | 95 |
| H34 | 345 | 285 | 12 | 100 |
| H38 | 380 | 330 | 10 | 110 |
5082 resists corrosion in seawater and many industrial atmospheres, and its moderate magnesium content keeps sensitization risk low even after welding.
5082 welds readily with MIG and TIG. Matching or 5xxx filler (e.g. 5356, 5183) preserves corrosion resistance in the weld zone.
The H3x tempers provide useful strength while remaining formable enough for vehicle bodies and panels.
Like other 5xxx alloys, 5082 retains toughness at low temperatures, supporting cryogenic and marine use.
Every 5082 order ships with a Mill Test Certificate (MTC) covering chemical composition and mechanical properties. Third-party inspection and SGS test reports are available on request. Linsy’s production is managed under ISO 9001, ISO 14001, and ISO 45001 systems.
Linsy is a Shenzhen-based aluminum supplier with more than 20 years of experience across the 1000-8000 series. For 5082 we support sheet, plate, bar, and tube with in-house CNC machining, cutting, welding preparation, and surface finishing. Typical custom lead time is 10-60 days depending on form and quantity, with MTC supplied on every order.
For deeper technical background on 5082 and related alloys, see the following resources from Linsy’s knowledge library:
No. 5082 is a non-heat-treatable 5xxx alloy strengthened by strain hardening (the H tempers). It cannot be solution heat treated like 6xxx or 7xxx alloys.
5083 has higher magnesium (4.0-4.9% vs 4.0-5.0% nominal but typically stronger) and is the stronger marine grade. 5082 offers slightly lower strength with very good corrosion resistance and formability at lower cost for less critical structures.
Yes, though 5xxx alloys anodise to a grey tone. For a consistent decorative finish, powder coating is often preferred.
Use a 5xxx filler such as 5356 or 5183 matched to the service environment.
Typical custom lead time is 10-60 days depending on form, temper, and quantity. Contact us with your specification for a firm quote.
MOQs depend on form and size. Smaller stock sizes may have lower MOQs; fully custom dimensions are quoted per enquiry.
Yes. An MTC is supplied with every order, and SGS or third-party inspection reports can be arranged on request.
Production is managed under ISO 9001, ISO 14001, and ISO 45001 systems. Material can be supplied to ASTM, EN, GB, and JIS standards on request.
Yes. We offer CNC machining, laser cutting, bending preparation, and surface finishing before shipment.
Linsy Vorteile
Linsy Aluminum ist ein führender Anbieter von Produkten für die Aluminiumverarbeitung und beliefert verschiedene Branchen wie die Luft- und Raumfahrt, den allgemeinen Maschinenbau, die Automobilindustrie, die Schifffahrt, den Schiffbau und andere spezialisierte industrielle Anwendungen.
Wir verpflichten uns, die höchsten Qualitäts- und Umweltstandards einzuhalten, was durch unsere Zertifizierungen belegt wird: ISO 9001:2008, ISO 14001:2004 und SGS.
