High-Pressure Die casting materials

Die casting offers an efficient and low-cost solution for the mass production of complex parts,
however, the quality of the finished product depends on the materials used in the die casting process.
Selecting the right material with the right properties is critical to achieving the desired result.

Aluminum alloys
ABS

Aluminum alloys

Die-casting aluminum alloys have good performance and process performance, so the die-casting of aluminum alloys has developed rapidly and has been widely used in various industrial sectors.

Material properties:

  1. Strong and durable: Aluminum alloys are tough, hard, and resist corrosion. For instance, parts made from ADC12 are both sturdy and wear-resistant.
  2. Efficient heat transfer: Aluminum alloys boast exceptional thermal conductivity. This efficiently spreads and dissipates heat, enhancing parts’ ability to withstand high temperatures.
  3. Easy to mold: Aluminum alloys are highly fluid, allowing them to effortlessly fill molds and solidify rapidly to create desired parts. This ease of molding enables efficient mass production of numerous identical or diverse parts within a short timeframe.

common types: ADC7,ADC10, ADC12,ADC14 A380, A360, A353

Magnesium alloys

Magnesium alloys

Magnesium alloy is an alloy composed of magnesium and other elements. The main alloying elements are aluminum, zinc, manganese, cerium, thorium and a small amount of zirconium or cadmium.

Material properties:

  1. Light weight, high specific stiffness, high specific strength, strong thermal conductivity
  2. Good machining performance, good impact resistance and compression resistance
  3. Good die-casting performance, good dimensional accuracy and stability
  4. Good regeneration, can be completely recycled
  5. Low corrosion resistance, flammable and explosive

Mainly used in aerospace, military, automobile, motorcycle and 3C electronic products.

Type: AZ91D, AZ80M, AZ31B, AM60B, M2M

Zinc alloys

Zinc alloys

Zinc alloy is an alloy composed of zinc and other elements. Often added alloying elements are aluminum, copper, magnesium, cadmium, lead, titanium and other low-temperature zinc alloys.

Material properties:

  1. Large specific weight; good casting performance, can die-cast precision parts with complex shapes and thin walls, and the surface of the castings is smooth;
  2. Surface treatment methods: electroplating, spraying, painting, electrophoresis, polishing, etc.;
  3. It has good mechanical properties and wear resistance at room temperature;
  4. Poor corrosion resistance, not suitable for use in high or low temperature (below 0°C) environment

Mainly used in toys, lamps, decorations, auto parts, mechanical and electrical parts, electrical components and their casings.

Type: AZ91D, AZ80M, AZ31B, AM60B, M2M, etc.

Mechanical & physical properities

High pressure casting offers more options for machine designers and significant cost advantages in high volume manufacturing.
Our proprietary thin-wall aluminum technology makes aluminum die casting the best choice for more customers.

Aluminum alloys

Aluminum Alloy
Elongation
Tensile Strength
Yield Strength (0.2%)
Impact Strength
Shear Strength
Hardness
Density
Melting Point (Average +/- 50)
Thermal Conductivity
Coefficient of Thermal Expansion
Process
% in 50mm
MPa
MPa
J
MPa
Brinell (HB)
g/cm3
°C
W / m K
µm/m°K
A380 3.5 324 160 4 190 80 2.71 566 96 21.8 Cold Chamber
383 (ADC12) 3.5 310 150 4 75 2.74 549 96 21.1 Cold Chamber
B390 1 317 250 120 2.71 580 134 18.0 Cold Chamber
A413 3.5 290 130 170 80 2.66 578 121 21.6 Cold Chamber
413 2.5 295 145 170 80 2.66 578 113 20.4 Cold Chamber
K-Alloy 5 295 172 80 2.63 680 113 Cold Chamber
A360 3.5 .5 317 170 180 75 2.63 577 113 21.0 Cold Chamber

Magnesium alloys

Magnesium Alloy
Elongation
Tensile Strength
Yield Strength (0.2%)
Impact Strength
Shear Strength
Hardness
Density
Melting Point (Average +/- 50)
Thermal Conductivity
Coefficient of Thermal Expansion
Process
in
50mm
MPa
MPa
J
MPa
Brinell
(HB)
g/cm3
°C
W / m K
µm/m°K
AZ91D 3 34 23 2 20 63 0.066 990 41.8 14.0 Hot Chamber

Zinc alloys

Zinc Alloy
Elongation
Tensile Strength
Yield Strength (0.2%)
Impact Strength
Shear Strength
Hardness
Density
Melting Point (Average +/- 50)
Thermal Conductivity
Coefficient of Thermal Expansion
Process
% in
50mm
MPa
MPa
J
MPa
Brinell
(HB)
g/cm3
°C
W / m K
µm/m°K
Zamak 2 7 359 283 47 317 100 6.60 385 105 27.7 Hot Chamber
Zamak 10 283 221 58 214 82 6.60 384 113 27.4 Hot Chamber
Zamak 5 7 328 228 65 262 91 6.60 383 109 27.4 Hot Chamber
Zamak 7 13 283 221 58 214 80 6.60 384 113 27.4 Hot Chamber
ZA 8 10 374 290 42 275 103 6.30 390 115 23.3 Hot Chamber
ACuZinc5 5 407 338 115 6.85 452 106 24.1 Hot Chamber
EZAC 6.7 414 393 6.49 396 Hot Chamber
ZA 27 – Zinc Aluminum 3 425 376 12.8 325 119 5.00 431 /td> 123 26.0 Cold Chamber

How to Make the Right Choice

Different materials can bring different performance characteristics to structural parts, so we must be very careful when choosing materials.

First, we need to consider the application environment of the structural member. If structural parts are going to be used in extreme environments, then we need to choose materials that can withstand these environments.

For high-temperature environments, heat-resistant alloy materials are usually selected, such as copper alloys or aluminum alloys; while for low-temperature environments, stainless steel or other alloy materials are good choices.

Second, we need to consider the loading conditions of the structural members. If the structural parts need to withstand high-strength loads, we need to choose high-strength materials, such as aluminum alloys, magnesium alloys or titanium alloys. Conversely, if the structural part needs to withstand lighter loads, we can choose lightweight materials such as aluminum or magnesium.

Finally, we need to consider the cost of the structural components. Different materials have different prices, and some high-performance materials are more expensive, so we need to make a trade-off between material performance and cost.

For some structural parts with low load and low requirements, we can choose materials with lower prices, such as aluminum or zinc;

When choosing a material, there are many other factors to consider, such as material availability, machinability, etc. However, the above factors are the key considerations when selecting suitable die-casting structural parts materials.

By taking these factors into consideration, we can select the most suitable material to ensure the performance and service life of the structural part.

choose cnc plastic material

Relative Standard Data

Some standards related to die casting: ASTM B85 outlines the specifications; ISO 3522:2007 covers the chemical composition and mechanical properties of aluminum and aluminum alloys; ISO 8062:1994 indicates the tolerance of castings, including die casting.

Other

Materials are an essential basic capability in the industry, and their development can promote technology and innovation and society’s development. The current trend of material development is to be more environmentally friendly and energy-saving.

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