What type of aluminum is used for die casting?

April 21, 2026

Many industries use specialty aluminum alloys for die casting to manufacture high-strength parts. The most commonly used alloys include A380, A360, A413, ADC12, B390, and ADC10. Each alloy has its unique properties, such as high strength, rust resistance, or good pressure resistance. Choosing the right aluminum alloy is crucial for both product performance and cost. MORELUX is a trusted die casting solutions company with extensive experience in aluminum die casting for the automotive, electronics, and medical device industries.

Key Takeaways

  • A380 is the most commonly used aluminum alloy in die casting. It is strong, lightweight, and versatile.
  • Choosing the right aluminum alloy is crucial. If you require corrosion resistance, A360 is a good choice. B390 is more wear-resistant. This helps ensure good product performance and durability.
  • Aluminum die casting alloys are reusable, making them environmentally friendly. Furthermore, it helps reduce waste and save energy.
  • MORELUX selects the best aluminum alloys for each project, a strategy that has proven highly effective in the automotive and electronics industries.
  • Understanding the unique characteristics of each alloy helps engineers make informed choices. This not only leads to superior designs but also saves costs during production.

Aluminum Used for Die Casting Alloys

A variety of special aluminum alloys are used in die casting. Each alloy has unique properties, making it suitable for different products and industries. MORELUX selects the best aluminum alloys for each project, producing high-quality components for automotive, electronics, and medical devices.

A380 Alloy Overview

A380 is the most commonly used aluminum alloy in die casting. It contains approximately 8.5% silicon and 3.5% copper. Silicon helps improve the metal’s fluidity and reduce shrinkage. Copper enhances the alloy’s strength and hardness. A380 is strong, lightweight, and resistant to wear.

ElementPercentage
Silicon7.5-9.5%
Copper3-4%
IronSmall amount
ManganeseSmall amount
Other elementsSmall amounts
PropertyValue
Tensile Strength (Ultimate)324 MPa
Yield Strength (0.2% offset)160 MPa
Elongation (in 50mm)3.5%
Shear Strength190 MPa
Hardness80 Brinell
Impact Strength4 J

A380 aluminum used for die casting is found in many things:

  • Car housings and transmission cases
  • Electronic boxes and LED lights
  • Engine parts, brackets, and telecom gear
  • Hand tools, office machines, and outdoor lights
Bar chart comparing mechanical properties of A380 aluminum alloy

MORELUX likes to use A380 because it works well for many jobs and is very reliable.

A360 Aluminum Alloy Overview

A360 is another important aluminum alloy used in die casting. Compared to A380, it has a higher silicon content (9.0-10.0%) and a lower copper content. This makes A360 more fluid and more resistant to corrosion. It maintains its strength even at high temperatures and will not break when bent.

A360 aluminum alloys are used in:

  • Car parts like oil pans and motor covers
  • Marine equipment like outboard motors
  • Hydraulic cylinders and pressure-tight parts
  • LED lamp covers and 5G boxes

A360 is a great pick for parts that need to fight rust, especially in water or outside.

Overview of A413 Alloy

The unique features of A413 alloy are its ease of casting, high strength, and light weight. It also has good thermal conductivity and is resistant to cracking at high temperatures. These properties make it ideal for manufacturing complex-shaped parts that need to withstand high temperatures.

PropertyDescription
Strength-to-Weight RatioHigh, suitable for strong but light parts
CastabilityExcellent, good for intricate components
Thermal ConductivitySuperior, helps with heat management
Hot Cracking ResistanceHigh, improves durability during casting
FluiditySuperior, allows for complex geometric shapes

A413 aluminum alloy, used in die casting, is commonly found in the automotive and electronics industries. These parts require specific shapes and must possess excellent thermal control properties.

ADC12 and ADC10 Alloys

ADC12 and ADC10 are commonly used aluminum alloys in Asia and globally. They differ in composition and processing properties.

CriteriaADC10ADC12
CompositionMore silicon and ironMore copper
Tensile StrengthAround 310 MPaAround 290 MPa
Yield StrengthAbout 140 MPaAbout 130 MPa
Hardness (Brinell)About 85 HBAbout 80 HB
ElongationAround 3%Around 2.5%
CastabilityGood, less fluid in complex moldsBetter, preferred for intricate casting
Corrosion ResistanceDecentBetter
Thermal ConductivitySlightly betterLower
ApplicationsAutomotive, electrical, engineeringElectronics, high-precision automotive
Bar chart comparing ADC10 and ADC12 aluminum alloy performance metrics

MORELUX uses ADC12 to manufacture parts requiring precise shapes and strong corrosion resistance. ADC10 is suitable for automotive and electronic parts requiring good heat dissipation.

B390 Alloy and Other Grades

B390 is a special aluminum alloy used for die casting, particularly suitable for parts requiring wear resistance. Its silicon content is 16% to 18%, significantly higher than other alloys. This gives B390 extremely high wear resistance and good heat dissipation, but its bending deformation resistance is relatively poor.

CharacteristicB390 Aluminum AlloyOther Die Casting Grades
Silicon Content16% – 18%Lower than B390
Wear ResistanceVery HighVaries
DuctilityLowestHigher in some grades
Thermal ConductivityHighVaries

B390 aluminum used for die casting is used in:

  • Engine blocks and cylinder liners
  • Brake parts and pulleys
  • Pumps and pistons

MORELUX picks B390 for parts that rub a lot or get very hot. Other grades with less silicon are picked for different needs.

Note: The MORELUX team helps customers pick the right aluminum alloys for every job. Their skill makes sure every die casting project is high quality and works well.

Key Properties of Aluminum Die Casting

Mechanical Strength

Mechanical strength refers to the amount of force a material can withstand. Die-cast aluminum alloys have very high strength. These excellent properties help extend the service life of parts and keep them safe under harsh operating conditions. The following table lists the main mechanical properties:

PropertyDescription
Tensile StrengthShows the highest pulling force the material can take. This helps parts hold heavy loads.
Yield StrengthMarks when the material starts to bend or change shape. This is important for strong designs.
ElongationTells how much the material can stretch before it breaks. This helps with safety and impact.
HardnessMeasures how well the material resists scratches and dents. This helps parts last longer.

Automotive components like engine hoods require high strength to ensure vehicle safety and proper functioning. Medical devices also need robust and durable materials to protect patients and ensure the devices function correctly.

Corrosion Resistance

Corrosion resistance refers to a material’s ability to resist rust and corrosion from water or chemicals. Aluminum alloys have better corrosion resistance than many metals, making them ideal for outdoor products and electronics.

Metal TypeCorrosion ResistanceNotable Alloys
Aluminum AlloysSuperiorA380, A356
Other MetalsVariesN/A

Aluminum alloys are widely used in electronic products and medical devices. Aluminum alloys are resistant to rust, which helps extend the product’s lifespan and keep it looking new.

Casting and Machinability

Casting refers to the ease with which metal can be filled into a mold. Machinability refers to the ease with which a part can be cut or shaped. Different aluminum alloys have different casting and machinability properties. The table below compares several common aluminum alloys:

AlloyApprox. Melting Range (ºF)Resistance to Hot CrackingDie-Filling CapacityAnti-Soldering to the DieMachining
3601035-11051323
3801000-11002213
4131065-10801114
390945-12003135
Bar chart comparing machinability and die-filling capacity ratings for common aluminum die casting alloys

Car and electronics companies need alloys that fill molds well. They also need alloys that are easy to shape. This helps make tricky parts with smooth surfaces.

Thermal Conductivity

Thermal conductivity means how well a material moves heat. Aluminum alloys for die casting move heat better than most metals. This helps keep electronics cool. It also makes car parts safer.

AlloyThermal ConductivityApplications
A413HighHeat sinks, hydraulic parts, engine covers, electronics, autos
ADC12Superior fluidityElectronics cases, telecom parts, LED lighting heat sinks

Good thermal conductivity stops electronics and cars from getting too hot. This keeps devices safe and working well.

Comparing Die Casting Alloys

Performance Differences

Aluminum alloys have different strengths in die casting. The table below shows how popular alloys compare:

AttributeA380A360ADC12 (A383)B390
Silicon Content7.5-9.5%9.0-10.0%9.5-11.5%16-18%
Density2.71 g/cm³2.63 g/cm³2.7 g/cm³2.74-2.8 g/cm³
Melting Point566°C577°C580°C580°C
Tensile Strength324 MPa317 MPa180-230 MPa320-360 MPa
Key AdvantageVersatileCorrosion resistanceDie-fillingWear resistance
Main UseAutomotive, toolsMarine, hydraulicsElectronics, carsEngine parts

A380 is strong and can be used for many things. A360 protects better against rust. ADC12 flows well and fills tricky shapes. B390 is very hard and does not wear out fast.

Bar charts comparing silicon content, density, melting point, and tensile strength of A380, A360, ADC12, and B390 aluminum alloys

Cost and Production Factors

Demand for alloys influences their price and supply. Automakers now require lighter materials, meaning increased use of aluminum alloys. The US die-casting market is also expanding with the rise of electric vehicles. Manufacturers will choose alloys that offer good performance at a reasonable price. A380 and ADC12 alloys are widely used in high-volume production due to their ease of use and low cost.

Tip: Picking the best alloy can save money and make better parts.

Application Suitability

Each alloy works best for certain jobs. The table below shows where each alloy is used:

Alloy TypeIndustry ApplicationKey Characteristics
A380AutomotiveLightweight, versatile
ADC12Automotive, electronicsGood for complex shapes
A360Industrial, marineHigh corrosion resistance
A413Hydraulic, intricate componentsHandles high pressure
B390Engine parts, pumpsSuperior wear resistance

Car companies use A380 for engine covers and brackets. Electronics makers use ADC12 for detailed cases. Marine and industrial companies use A360 because it fights rust. B390 is used in engines and pumps that need to last a long time.

Note: MORELUX helps customers pick the best alloy for their project. This makes sure every die casting job turns out great.

Choosing the Best Aluminum for High-Pressure Die-Casting

Project Requirements

Every project is different and has its own needs. Engineers think about strength, weight, and shape before picking an aluminum alloy. Some parts need to be light but also strong. Other parts must handle heat or fit into tricky molds. The table below shows how each alloy does in important areas:

Alloy TypeStrength-to-Weight RatioCorrosion ResistanceThermal ConductivityMachinability
A413ExcellentGoodBalancedHigh
A360HighExcellentGoodModerate

A413 is ideal for components requiring both strength and lightweight design. A360 is best suited for components exposed to water or chemicals. MORELUX is dedicated to helping customers select the right aluminum alloy for each project. Their team utilizes intelligent design tools to ensure every component functions perfectly.

Environmental and Industry Factors

The environment and regulations of different industries are key factors in selecting aluminum alloys. For example, industries such as automotive manufacturers require alloys that meet stringent regulations. The table below lists commonly used alloys and their certifications:

AlloyCorrosion ResistanceIndustry Standards
A360StrongASTM, EN, JIS
ADC12Excellent fluidityCE, RoHS
A413StrongASTM, EN, JIS
A380SufficientASTM, EN, JIS
  • Cars need alloys that are strong, light, and can take heat.
  • Electronics need good heat control and smooth surfaces.
  • Planes need the best quality and long-lasting parts.

Aluminum die casting is environmentally friendly because aluminum can be reused. Using recycled metal saves energy and reduces waste. MORELUX maintains strict quality control to ensure compliance with all industry and environmental regulations.

Production Volume and Cost Considerations

The number of parts affects the cost of aluminum die casting. Producing a large number of parts at once reduces the cost per part. Mass production of simple-shaped parts is also less expensive. The price of aluminum die casting alloys fluctuates depending on customer demand. Higher-performance alloys are more expensive, but special-purpose parts require even higher-performance alloys.

  • The price of aluminum die casting alloys goes up and down with supply and demand.
  • Making many parts at once lowers the cost for each one.
  • Good design and careful work help make less waste.

MORELUX checks every part before, during, and after making it. This makes sure every part is high quality for high-pressure die-casting projects.

Tip: Work with experts like MORELUX to pick the best aluminum die casting alloy for your project. Their custom help and quality checks make every project do well.

Aluminum die casting uses alloys such as A360, B390, and A380. Each alloy is good for different jobs. The table below shows what makes each alloy special:

Alloy TypeKey CharacteristicsCommon Applications
A360Keeps pressure well, fights rustUsed for strong parts
B390Very hard, does not wear out fastUsed in engines
A380Works for many things, strong, easy to shapeUsed in lots of products

Picking the right alloy makes every project work well. Today, companies want new alloys, more machines, and to help the planet. MORELUX helps customers find the best die-casting alloy for their needs.

FAQ

What is the most commonly used aluminum alloy in die casting?

A380 is the most commonly used alloy. Many companies choose it because of its high strength, light weight, and ease of molding. A380 is ideal for automotive, electronics, and other components.

Why do engineers choose ADC12 for electronics?

Engineers like ADC12 because it fills complex molds very well. It is rust-resistant and produces a smooth surface finish. These properties make it ideal for electronic casings and small parts.

How does MORELUX ensure die casting quality?

MORELUX uses specialized tools to inspect each part. Their team monitors every step from start to finish to ensure that every part is manufactured to a high standard.

Can aluminum die casting alloys be recycled?

Yes, aluminum alloys can be recycled multiple times. Recycling reduces energy consumption and waste generation. Many companies use recycled aluminum to protect the environment.

Which industries use high-pressure aluminum die casting?

Automotive, electronics, telecommunications, and medical companies all use high-pressure aluminum die casting. They need sturdy, lightweight, and appropriately sized parts.

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