EN AW 5083 Cast Aluminum Mold Plate | High Strength Tooling Plate
What Is EN AW 5083 Cast Aluminum Plate?
EN AW 5083 cast aluminum mold plate is a high-performance aluminum plate specifically designed for tooling, mold bases, and structural applications requiring excellent strength, corrosion resistance, and dimensional stability.
Compared with standard rolled 5083 aluminum plate, cast 5083 mold plate offers improved flatness, reduced internal stress, and better machinability, making it a reliable choice for precision machining and long-term industrial use.
ChinalcoMetal supplies EN AW 5083 cast aluminum mold plates in custom thicknesses, widths, and lengths, suitable for CNC machining, mold manufacturing, and heavy-duty structural components.
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 aluminum plate size
Name | Thickness | Tolerance of Thickness | Width | Length |
EN AW 5083 | 5mm-600mm | -1.0mm---+1.0mm | 30mm-2000mm | 50mm-5000mm
|
5083 Stock | 5, 10, 20, 25, 30, 35,40,50,60,70,80, 100,120,150,200, 220,260,300,350, 400,450,500,550 | -1mm-----+1mm | 1250mm*2500mm 1500mm*3000mm 1520mm*3050mm 1650mm*3660mm | |
Key Advantages of 5083 Cast Aluminum Mold Plate
Excellent Mechanical Strength
5083 aluminum alloy is well known for its high magnesium content, which provides superior strength compared to many other non-heat-treatable aluminum alloys. This makes it suitable for load-bearing tooling and structural parts.
Outstanding Corrosion Resistance
EN AW 5083 exhibits exceptional resistance to:
Seawater corrosion
Industrial atmospheres
Chemical environments
This makes it a preferred material for marine tooling, shipbuilding components, and offshore equipment.
Cast Plate Stability for Machining
As a cast aluminum mold plate, this material offers:
Low internal stress
Excellent flatness
Minimal deformation during machining
These properties significantly reduce machining errors and scrap rates, especially for large mold bases and precision components.
Good Machinability & Surface Finish
5083 cast aluminum mold plate delivers smooth cutting behavior and consistent surface quality, suitable for CNC milling, drilling, and finishing operations.

Typical Applications
EN AW 5083 cast aluminum mold plate is widely used in:
Plastic injection mold bases
Blow molding and thermoforming molds
Marine structural components
Shipbuilding fixtures and tooling
Heavy-duty industrial jigs and fixtures
Precision machined plates and bases
5083 Cast Plate vs Rolled 5083 Aluminum Plate
| Item | Cast Aluminum Mold Plate | Rolled Aluminum Plate |
|---|---|---|
| Internal Stress | Very low | Higher |
| Flatness | Excellent | Moderate |
| Machining Stability | High | Medium |
| Best Use | Tooling & molds | Structural sheets |
| Cost | Higher | Lower |
For precision machining and mold applications, cast aluminum mold plate is strongly recommended.
Why Choose ChinalcoMetal
Reliable aluminum material sourcing
Consistent quality and stable supply
Custom cutting and machining support
Export experience for industrial markets
Fast response for technical and commercial inquiries
We work closely with tooling manufacturers, marine equipment suppliers, and industrial users worldwide.
Request a Quote or Technical Support
Looking for EN AW 5083 cast aluminum mold plate with specific dimensions or performance requirements?
📩 Contact our team to receive:
Technical consultation
Material recommendations
Competitive pricing
Lead time confirmation



