Alsi42 Alloy Company | Alsi42 Alloy Exporters

Alsi42 Alloy Company | Alsi42 Alloy Exporters

alsi42 alloy is a forging and casting alloy mainly composed of aluminum and silicon. Generally, it contains about 11% silicon. A small amount of copper, iron, and nickel are also added to improve strength, density and thermal conductivity.
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Tianjin Zuoyuan New Material Technology Co., Ltd. is a high-tech company specializing in advanced metal material preparation technology research and high-performance metal material development, production and sales. Mainly produces high-silicon aluminum alloy and superhard aluminum alloy, including alloy raw materials, bars, pipes, plates, profiles and so on. Widely used in aerospace, aviation, electronics, automotive, machinery and petroleum industry and other sophisticated fields.

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alsi42 alloy | solution treatment

The purpose of the solution treatment of Al-Si alloy is to fully dissolve Mg and Si into the α-Al matrix, which provides preparation conditions for the precipitation of more strengthening phases during subsequent aging; in addition, the morphology of the eutectic silicon phase changes from fibrous to granular transformation to improve the mechanical properties of the alloy.

alsi42 alloy | solution treatment

alsi42 alloy | Applications

alsi42 alloy aluminum-silicon alloy can be used in automobile engines to replace cast iron cylinders and significantly reduce weight. The aluminum-silicon alloy used as a cylinder can be electrochemically treated to etch the surface aluminum and then remain embedded in the basic primary silicon dots on the inner wall of the cylinder, and its scratch resistance and wear resistance are significantly improved. Its silicon content of 11% to 13% alloy has become one of the best piston materials due to its light weight, low expansion coefficient and high corrosion resistance.

alsi42 alloy | Applications

alsi42 alloy | Effect of heat treatment on the microstructure and properties of cast aluminum-silicon alloys

The heat treatment of cast Al-Si alloy mainly includes solution treatment and aging treatment. Heat treatment will not change the external shape and overall chemical composition of the material, but adjust the internal structure of the material, thereby improving the performance of the material. The effect of heat treatment on α-Al lies in the solid solution of alloying elements in α-Al matrix and the precipitation of strengthening phase.

alsi42 alloy | Effect of heat treatment on the microstructure and properties of cast aluminum-silicon alloys
User Reviews

What users say about Us

We have been sourcing high-silicon aluminum alloy from Tianjin Zuoyuan for several years now, and their consistently top-notch quality has been instrumental in our aerospace projects. Their dedication to precision and reliability sets them apart in the industry.


The superhard aluminum alloy products from Tianjin Zuoyuan have truly exceeded our expectations. We rely on their materials for our cutting-edge electronics manufacturing, and they've never let us down. Excellent products and exceptional service!


Tianjin Zuoyuan's high-silicon aluminum alloy products have played a pivotal role in our advanced machinery manufacturing. Their consistency in delivering high-quality materials and their attention to detail make them our go-to supplier.


As a leading player in the petroleum industry, we demand the best materials, and Tianjin Zuoyuan consistently delivers. Their superhard aluminum alloy products have improved our drilling operations significantly, and their partnership approach is truly valued.

Frequently Asked Question

Do you have any question?

Tianjin Zuoyuan New Material Technology Co., Ltd. is a high-tech company specializing in the research of advanced metal material preparation technology and the development, production and sales of high-performance metal materials. With the valuable experience accumulated over the years in the field of non-ferrous metal development and the integration of advanced automation control technology, Zhongyuan has achieved remarkable results in the field of high-performance metal materials and has become an innovative enterprise with strong competitiveness in this field. The superhard aluminum alloys and high wear-resistant aluminum alloys developed by the company have been successfully applied in high-end fields such as aerospace, satellite communications, and auto parts industries.

Our technical advantages

Yes. All AlSi alloys can be machined easily, such as CNC, EDM, wire cutting etc.

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