The comparison between ADC12 and A380 cast aluminum alloys
ADC12 vs. A380 Aluminum Alloy Comparison Table
|
Comparison Dimension |
ADC12 (JIS Standard) |
A380 (ASTM Standard) |
|
Standard System |
Japanese JIS H5302 (Recycled Al) |
American ASTM B85 (Primary Al) |
|
Material Source |
Recycled scrap aluminum (≥80%) |
Primary aluminum + virgin alloys |
|
Key Composition |
- Si 9.6-12.0% |
- Si 7.5-9.5% |
|
Impurity Tolerance |
≤3.5% (Fe≤1.3%, Mn≤0.5%, Zn≤1.0%) |
≤2.0% (Fe≤1.3%, Mn≤0.5%, Zn≤3.0%) |
|
Typical Mechanical Properties |
- Tensile strength ≥228 MPa |
- Tensile strength ≥320 MPa |
|
Process Compatibility |
Optimized for die casting |
Die casting/Sand casting/Simple permanent mold |
|
Cost Positioning |
Low-cost (recycled materials) |
Medium-high (virgin material control) |
Core Differences Analysis
1. Performance Differentiation
-
Silicon Content
ADC12's higher Si (9.6-12% vs. 7.5-9.5%):
- Enhances fluidity for thin-wall die casting (e.g., 3C product housings)
-
A380's lower Si improves tensile strength (+40%) and ductility (+150%)
-
Copper Content
A380's higher Cu (3-4% vs. 1.5-3.5%):
-
Copper Content
- Boosts high-temperature strength (ideal for engine brackets)
-
Reduces corrosion resistance (requires surface treatments)
-
Impurity Impact
ADC12's higher impurities (3.5% vs. 2.0%):
-
Impurity Impact
- Increases porosity by 15-20%
- Lowers thermal conductivity 10-15% (critical for heat sinks)
2. Process Compatibility
|
Process |
ADC12 Suitability |
A380 Suitability |
|
High-pressure Die Casting |
★★★★★ (Optimized) |
★★★★☆ (Parameter adjustment needed) |
|
Sand Casting |
★☆☆☆☆ (Prone to hot tearing) |
★★★★☆ (Preferred method) |
|
Permanent Mold Casting |
★★☆☆☆ (Simple geometries only) |
★★★☆☆ (Requires slow cooling) |
|
Vacuum Die Casting |
★★☆☆☆ (Impurity challenges) |
★★★★☆ (High air-tightness parts) |
Application Scenarios
ADC12 Dominant Applications
- Automotive: Valve covers, sensor brackets (1.5-3mm wall thickness)
- Appliances: AC compressor housings (cost-driven components)
- General Machinery: Pump casings (non-load-bearing parts)
A380 Dominant Applications
- Powertrain: Engine mounts, transmission cases (fatigue resistance)
- Industrial Equipment: Hydraulic blocks (high stiffness required)
- Aerospace: Non-structural brackets (strength-to-weight optimization)
Foundry Expert Recommendations
- Cost-Driven Projects
- Use ADC12: Ideal for painted/electrophoresis parts (masks porosity)
-
Avoid for anodizing (impurity-induced color variation)
- Performance-Critical Applications
- Choose A380: Combine with T5 heat treatment (+15-20% strength)
-
Implement mold temperature control for complex geometries
- Special Process Requirements
- Welded components: Prefer A380 (lower Si reduces hot cracking)
-
Thermal management parts: Avoid ADC12 (thermal inconsistency)
- This technical comparison enables engineers and purchasers to make informed material decisions. For free DFM analysis templatesor defect prevention guides, contact our technical team.