The commonly used aluminum — GREFEE aluminum alloy die casting material

Posted on : March 8 , 2024 ， By  GREFEE

The fundamental industrial of the manufacturing is hardware processing. The aluminum alloy die casting is essential in hardware processing industrial. Almost 90% of business in hardware processing will involve aluminum alloy die casting products. As an important composed part of metal die casting industry, aluminum alloy die casting produced over 50% metal die casting pieces.

Since aluminum alloy die casting piece has high size precision, surface smoothness, high strength and hardness, it is widely used in all walks of life. The strength of aluminum alloy die casting is 25 ~30% higher than that of sand die casting with size stability, good interchangeability, with a minimum wall thickness of 0.5mm.

Not only advanced equipments and high technology are essential, but also reasonable selection of aluminum alloy type and code is also necessary for producing good quality aluminum alloy die casting pieces.

For material selection, we need consider product design performance, mechanical performance of material, economical performance and feasibility of process to make our products more competitive in the market.

Such as Al Mg alloys with strong corrosion resistance, Al Zn alloys with high mechanical properties, and Al Si alloys with good casting performance.

In addition, as a variety of aluminum alloy die casting, and different areas have different standards. Most of them are distinguished by the proportion of other elements they contain, such as the commonly used aluminum silicon alloy YL113, which is codenamed LM2 in some countries and 46100, 5076, 384, 383, or ADC12 in others. Although the names are different, the types of metals they contain are the same, with slight differences in the amount of content.

Aluminum silicon alloy is popular overseas and domestic in die casting industry due to its great die casting performance, high gas resistance, simple process, and excellent corrosion resistance.

Meanwhile, aluminum silicon alloy is also the first type of alloy that was being used and then widely developed around the world. With constant research and update, most of the international mainstream aluminum silicon alloys have been finalized, including A356, A360, A380, ADC12, LM2, LM5, and LM24 at present. They are similar in density, heating capacity and melting point, but differed largely in thermal conductivity, tensile strength, yield strength, and elongation.

Select suitable raw materials based on the performance of the target product being produced.

Among the above alloys, A356 has the highest thermal conductivity, while A380 and ADC12 have the lowest. The tensile limit is the opposite, A360 has the most outstanding yield strength, and LM5 has the highest elongation, each with its own advantages.

ADC 12 has good performance in all aspects and is relatively balanced, without outstanding features and disadvantages, which is commonly used in aluminum die casting industry. 80% product from GREFEE selects ADC 12 due to its strong load-bearing capacity, high mechanical properties, good cutting performance, good demolding performance, high casting qualification rate. Especially for thin-walled parts, which can meet the requirements of high-performance aluminum alloy die castings.

ADC12 license plate aluminum alloy is more economical in price  and easier to manage in manufacturing. It meet the needs of this type of products in all aspects and is the most suitable die casting raw material. With the excellent performance of Grefee’s equipment, advanced mechanization of die-casting operations, and a complete mold water cooling system, things will fall into place.

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