What Is EN AW 5083 Cast Aluminum Plate?
EN AW 5083 is a high-performance cast aluminum plate from the 5000 series, based on an aluminum-magnesium alloy. Compared to other 5000 series cast plates like 5052 or 5754, 5083 offers higher strength and superior corrosion resistance, especially in marine environments. This makes it an ideal choice for heavy-duty parts and mold bases.
5083 cast aluminum plates are typically used in applications where flatness and thickness are critical. These plates are machined from cast aluminum blocks rather than being rolled, which gives them good dimensional stability and reduces internal stress. EN AW 5083 is widely used in shipbuilding, tooling, and structural applications.
EN AW 5083 Chemical Composition and Properties:
| Element | Content |
|---|---|
| Magnesium (Mg) | 4.0 – 4.9% |
| Manganese (Mn) | 0.4–1.0% |
| Chromium (Cr) | 0.05–0.25% |
| Iron (Fe) | ≤ 0.4% |
| Silicon (Si) | ≤ 0.4% |
| Zinc (Zn) | ≤ 0.25% |
| Copper (Cu) | ≤ 0.1% |
| Aluminum (Al) | Balance |
| Property | Value |
|---|---|
| Density | 2.66 g/cm³ |
| Yield Strength | ≥ 215 MPa |
| Tensile Strength | ≥ 290 MPa |
| Hardness | 65–75 Brinell |
| Elongation | ≥ 12% |
| Corrosion Resistance | Excellent |
| Weldability | Excellent |
EN AW 5083 Cast Aluminum Plate Sizes:
| Name | Thickness | Tolerance of Thickness | Width | Length |
|---|---|---|---|---|
| EN AW 5083 | 5 mm-600 mm | -1.0 mm to +1.0mm | 30 mm–2000 mm | 50 mm–5000 mm |
EN AW 5083 vs MIC-6 vs K100S Aluminum Plate:
Composition Comparison:
| Material | Main Composition (%) | Alloy Series | Process |
|---|---|---|---|
| EN AW 5083 | Al + 4-4.9% Mg + 0.4-1% Mn | 5000 Series (Al-Mg) | Rolled Plate |
| MIC-6 | Al + 11-13% Si + trace Fe/Cu | Cast Al-Si Alloy | Cast + Precision Milling |
| K100S | Al + 3-4% Mg + trace Mn/Cr | 5000 Series (Al-Mg) | Rolled/Special Treatment |
Properties Comparison:
| Property | EN AW 5083 | MIC-6 | K100S |
|---|---|---|---|
| Strength | Medium (Tensile ~270-320 MPa) | Low (cast alloy, non-heat treatable) | Medium (similar to 5754, ~200-250 MPa) |
| Corrosion Resistance | Excellent (especially seawater) | Fair (Si prone to oxidation) | Good (resists chemical corrosion) |
| Thermal Stability | Poor (high thermal expansion) | Excellent (low expansion, stress-free) | Moderate |
| Machinability | Weldable, easy to form | High-precision machining (avoid high heat) | Weldable, easy to stamp |
| Surface Quality | Requires post-treatment | Mirror-like (directly milled) | High flatness |
Typical Applications:
| Material | Applications |
|---|---|
| EN AW 5083 | Shipbuilding, marine platforms, chemical tanks (corrosion resistance + weldability) |
| MIC-6 | Semiconductor equipment bases, optical platforms, vacuum chambers (zero distortion + high stability) |
| K100S | Medical devices, food machinery, transportation (balances corrosion resistance and machinability) |
Alternative Materials:
| Material | Substitutes (Similar Properties) | Reason for Substitution |
|---|---|---|
| EN AW 5083 | 5052 (AlMg2.5) | Lower strength but easier to form, suitable for lightweight needs |
| MIC-6 | AlSi10Mg (for 3D printing) or A383 (AlSi12) | Both are cast Al-Si alloys with similar stability |
| K100S | EN AW 5754 (AlMg3) | Nearly identical composition and properties, internationally standardized |
FAQ about 5083 Aluminum Plate:
How is 5083 cast aluminum plate made?
It is made by casting aluminum ingots, followed by cutting and milling to size. The plate is stress-relieved to improve stability.
Can you bend 5083 aluminum?
Yes, 5083 has good formability, but it should be done carefully, especially in thicker sections.
What is 5083 aluminum used for?
It is used in shipbuilding, mold bases, pressure vessels, and heavy-duty parts.
Is 5083 aluminum a specialty metal?
No, it is a standard industrial-grade aluminum alloy widely used across many industries.
What are the different tempers of 5083 aluminum plate?
5083-O – Annealed, soft, easy to form
5083-H111 – Slightly strain-hardened, used for marine parts
5083-H112 – As fabricated, for thick plate applications
5083-H116 – Special temper for excellent corrosion resistance in marine environments
5083-H32 – Hardened and partially annealed, offers good strength and formability
GNEE, a trusted Chinese supplier, offers EN AW 5083 cast aluminum plates in stock and customized sizes. Contact us for more details.
