5083 aluminum sheet is a non-heat-treatable, high-magnesium alloy (AlMg4.5Mn0.7) and one of the strongest work-hardenable grades available. It delivers excellent resistance to seawater corrosion and stress-corrosion cracking, with high weldability and strength-to-weight ratio. Linsy supplies it as sheet and plate in O, H111, H112, H116, H321, and H32 tempers.
Available forms: sheet / plate / coil
Common tempers: O / H111 / H112 / H116 / H321 / H32
Processing support: CNC cutting, laser cutting, bending, welding, anodizing, polishing
Quality documents: MTC report with every order
5083 Aluminum Sheet is a non-heat-treatable aluminum-magnesium alloy (AlMg4.5Mn0.7) supplied by Linsy Aluminum. It is one of the strongest work-hardenable grades and is widely specified for marine, offshore, and cryogenic service because of its excellent resistance to seawater corrosion and its ability to retain strength after welding. Common tempers include O, H111, H112, H116, and H321.
| Thickness | 0.5 – 150 mm |
|---|---|
| Width | 1000 – 3000 mm |
| Length | 1000 – 6000 mm (custom) |
| Common Tempers | O, H111, H112, H116, H321, H32 |
| Standards | ASTM B209, EN 485, GB/T 3880 |
Dimensions can be customized to customer drawings. Share your required size and temper for a quote.
| Standard | Designation |
|---|---|
| AA / UNS | 5083 / A95083 |
| EN | EN AW-AlMg4.5Mn0.7 |
| ISO | AlMg4.5Mn0.7 |
| GB/T | 5A05 (closest domestic grade) |
| JIS | A5083 |
The composition below follows the AA 5083 specification (AlMg4.5Mn0.7). Values are typical ranges; the supplied MTC reports the actual analysis of your lot.
| Element | Percentage % |
|---|---|
| Si | 0.40 max |
| Fe | 0.40 max |
| Cu | 0.10 max |
| Mn | 0.40 – 1.00 |
| Mg | 4.00 – 4.90 |
| Cr | 0.05 – 0.25 |
| Zn | 0.25 max |
| Ti | 0.15 max |
| Others (each) | 0.05 max |
| Others (total) | 0.15 max |
| Al | Balance |
Values below are typical room-temperature properties for 5083 sheet and plate. Actual results depend on temper and thickness and are reported on the MTC.
| Temper | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Brinell Hardness |
|---|---|---|---|---|
| O | 275 – 350 | 110 – 145 | 16 – 21 | ~75 |
| H111 | 275 – 350 | ≥175 | 16 | ~75 |
| H112 | ≥275 | ≥125 | ≥12 | ~75 |
| H116 / H321 | 305 – 385 | ≥215 | ≥10 | ~85 |
| H32 | 305 – 345 | ≥215 | ≥12 | ~85 |
5083 is non-heat-treatable — tempers are produced by strain hardening and stabilization, not by solution heat treatment.
Resists seawater, brine, and many chemicals; widely used where long service life in marine environments is required.
One of the strongest non-heat-treatable aluminum alloys, with good strength-to-weight ratio.
Excellent weldability with minimal loss of properties in the heat-affected zone.
Retains toughness at low temperatures, suitable for LNG and cryogenic storage.
5083 welds well with conventional processes (TIG/MIG) and retains most of its strength in the weld zone. For welding filler, ER5183 or ER5356 wire is commonly used. The alloy has only moderate machinability compared with heat-treatable grades, and cutting tools should account for its gummy chip formation.
Every 5083 order ships with a material test certificate (MTC) that reports the actual chemical analysis and mechanical results for the supplied lot. Third-party SGS test reports are available on request. Standard mill inspections cover dimensional tolerance, surface condition, and tensile verification per the ordered specification.
Linsy Aluminum is a Shenzhen-based aluminum manufacturer with over 20 years of production experience, supplying the 1000–8000 series across plate, bar, tube, wire, coil, profile, and block. For 5083 sheet, we support custom dimensions, small minimum order quantities, and short lead times.
Linsy supplies 5083 as sheet and plate from 0.5 mm up to 150 mm. Thicker plates are produced to order.
H116 and H321 are the standard marine tempers for 5083 plate, offering stabilized strength and corrosion resistance.
Yes. 5083 has good resistance to stress-corrosion cracking, an important property for marine and offshore structures.
Custom 5083 orders are usually produced and shipped within 10–60 days, depending on temper, size, and quantity. Contact us with your drawing or specification for a firm schedule.
We support low minimum order quantities for standard tempers and common sizes. Non-standard dimensions are quoted case by case.
Yes. A material test certificate (MTC) is provided with every order, and third-party SGS test reports are available on request.
Mill finish is standard. Anodizing, polishing, powder coating, and PVC film protection can be arranged.
Yes. CNC cutting, sawing, and machining services are available so material arrives closer to your net shape.
Linsy Advantages
Linsy Aluminum is a leading supplier of aluminum processing products, serving diverse industries including aerospace, general engineering, automotive, marine, shipbuilding and other specialized industrial applications.
We are committed to maintaining the highest standards of quality and environmental responsibility, as demonstrated by our certifications: ISO 9001:2008， ISO 14001:2004 and SGS.
